Air Service recruiting poster, 1918Roundel of the Air Service, United States Army used on planes in the American Expeditionary Forces during World War I
Aero Squadrons were the designation of the first United States Army aviation units until the end of World War I. These units consisted of combat flying, training, ground support, construction and other components of the Air Service. After World War I ended, the majority of these squadrons were demobilized. Some however were retained during the interwar period of the 1920s and 1930s, and served in all theaters of operation during World War II. Today, the oldest squadrons in the United States Air Force and Air National Guard can trace their lineage back to the original Aero Squadrons of World War I.
Overview
In January 1918 a new numbering scheme for aero squadrons was set up. Numbers 1–399 would be for Aero Service Squadrons (AS). 400–599 Aero Construction Squadrons (ACS), 600–799 Aero Supply Squadrons and 800–1099 Aero Repair Squadrons. Non-notable support squadrons are not listed.
The numerical designation of school squadrons at the various flying fields in the United States was discontinued in July 1918, and replaced by letter designation. For example, the 2d Aero Squadron became Squadron A, Kelly Field. In November 1918, the personnel of the lettered squadrons of each flying field was merged into a single Flying School Detachment at such station.
Formed prior to 2 April 1917
American Expeditionary Force combat squadron
Planned American Expeditionary Force combat squadron (never entered combat)
In addition to the Aero Squadrons, whose mission supported airplanes in one way or another, Air Service Spruce Squadrons have been noted and listed. A part of the Signal Corps, they were located in Oregon and Washington states. When the U.S. entered World War I, it was quickly discovered that the nation had no capacity to build warplanes in quantity. Spruce timber, vital to wing construction was in critically short supply. In 1918, the United States Army stepped in and took over the production of airplane spruce in the pacific northwest, with the Spruce Production Division organizing loggers and constructing a plant to process the wood, construct roads and railroads into the forests to access and cut the timber.
Men in the Spruce Squadrons were part of the Signal Corps along with the Aero Squadrons, as the Signal Corps oversaw all Army aviation. About 50,000 soldiers were assigned to Spruce Squadrons, overseeing about 100,000 lumber workers, were assigned to small camps in the Pacific Northwest. Many of these men were itching to go "over there" and take part in combat, however, their labor and skills to produce spruce lumber were needed far more, in the forests of the Pacific Northwest to produce the materiel needed to build aircraft. The camps where the soldiers were located are listed on the individual squadron entry.
Squadrons
1st to 24th Aero Squadrons
At the time of the United States entry into World War I in April 1917, three Aero Squadrons had been formed. The 1st and 3d were in the United States, and the 2d was in the Philippines. The 6th, being destined for Hawaii and the 7th, destined for the Panama Canal Zone were organizing. The 4th and 5th, to be based in the continental United States had yet to receive personnel.
Formed as: 1st Provisional Aero Squadron[1] Pre-WWI service in Mexico and Texas[2] AEF: 6 April 1918 – 12 May 1919 Corps Observation Squadron Combat with I Corps Observation Group[3]
Patrols in the Toul, Aisne-Marne, Vesle and Toul-Verdun Sectors
Most senior organization in the United States Air Force
Returned to the United States in August 1919, stationed at Park Field, Tennessee
Redesignated in the Army Air Service as the 1st Squadron (Observation) on 14 March 1921; Re-designated as the 1st Observation Squadron on 15 November 1922; Reorganized and re-designated 1st Bombardment Squadron on 1 March 1935.[5]
Formed as: 1st Company, 2d Aero Squadron Pre-WWI service in the Philippines[6] Instructional flying squadron Re-designated: Squadron A, Kelly Field, Texas, July 1918 Demobilized: 18 November 1918
Constituted in the Air Service, United States Army on 3 June 1919, at Rockwell Field, California, as the 2d Aero Squadron; Transferred on 24 December 1919, to the Philippines assigned to the Philippine Department.
Redesignated in the Army Air Service as the 2d Squadron (Observation) on 14 March 1921; Consolidated on 8 April 1924, with the 2d Aero Squadron; Re-designated as: 2d Observation Squadron on 25 January 1923[7]
Stationed at Nichols Field, Philippines on 7 December 1941, subsequently wiped out in the 1941–1942 Battle of the Philippines; Inactivated 2 April 1946; Re-activated 1 January 1949.[8]
Pre-WWI service in Texas[11] Instructional flying squadron Re-designated: Squadron A, Post Field, Oklahoma, July 1918 Demobilized: 2 January 1919
Constituted in the Air Service, United States Army on 13 May 1919, at Mitchel Field, New York, as the 3d Aero Squadron; Transferred on 5 July 1919, to the Philippines assigned to the Philippine Department.
Redesignated in the Army Air Service as the 3d Squadron (Pursuit) on 14 March 1921; Re-designated as the 3rd Pursuit Squadron on 25 January 1923 Consolidated on 8 April 1924, with the 3rd Aero Squadron[12]
Stationed at Clark Field, Philippines on 7 December 1941, subsequently wiped out in the 1941–1942 Battle of the Philippines; Inactivated 2 April 1946.[13]
Re-designated 3d Tactical Fighter Squadron on 12 March 1973; Activated on 15 March 1973.
Planning for organization began in December 1916 when the United States Army made plans for a force of seven air squadrons[15] Instructional flying squadron Re-designated: Squadron B, Post Field, Oklahoma, July 1918 Demobilized: 2 January 1919
Constituted in the Air Service, United States Army on 23 June 1919, at Hazelhurst Field, New York, as the 4th Aero Squadron; Transferred on 24 January 1920, to Luke Field, Hawaii assigned to the Hawaiian Department.
Redesignated in the Army Air Service as the 4th Squadron (Observation) on 14 March 1921; Re-designated as the 4th Observation Squadron on 25 January 1923
Consolidated on 8 April 1924, with the 4th Aero Squadron; Reorganized and re-designated 4th Reconnaissance Squadron (Medium Range) on 25 January 1938[16]
Assigned to Hickam Field, Hawaii on 7 December 1941, largely destroyed during the Pearl Harbor Attack; Re-designated 394th Bombardment Squadron (Heavy) on 22 April 1942[17]
Planning for organization began in December 1916 when the United States Army made plans for a force of seven air squadrons[15] Instructional flying squadron Re-designated: Squadron A, Souther Field, Georgia, July 1918 Demobilized: 11 November 1918
Constituted in the Air Service, United States Army on 23 June 1919, at Hazelhurst Field, New York, as the 5th Aero Squadron; Transferred in November 1919 to Mitchel Field, New York
Redesignated in the Army Air Service as the 5th Squadron (Observation) on 14 March 1921; Re-designated 5th Observation Squadron on 25 January 1923; Consolidated in April 1924 with the 5th Aero Squadron[19]
Planning for organization began in December 1916 when the United States Army made plans for a force of seven air squadrons[15] Garrisoned at: Luke Field, Ford Island, Hawaii
Redesignated in the Army Air Service as the 6th Squadron (Pursuit) on 14 March 1921; Re-designated as the 6th Pursuit Squadron on 25 January 1923; Re-designated: 6th Pursuit Squadron on 25 January 1923[21]
Planning for organization began in December 1916 when the United States Army made plans for a force of seven air squadrons[15] Garrisoned in Panama Canal Zone
Redesignated in the Army Air Service as the 7th Squadron (Observation) on 14 March 1921; Re-designated: 7th Observation Squadron on 25 January 1925.[24]
Re-designated: 397th Bombardment Squadron (Heavy) on 11 May 1942; Inactivated on 1 November 1946.[25]
Returned to the United States in June 1919 and assigned to Kelly Field, Texas; Re-designated 8th Surveillance Squadron; Transferred on 13 August 1919, less Flight B, to the U. S. Army Airdrome, McAllen, Texas.
Redesignated in the Army Air Service as the 8th Squadron (Attack) on 14 March 1921; Entire squadron transferred 2 July 1921, to Kelly Field, Texas. Re-designated as the 8th Attack Squadron 25 March 1923; Reorganized and re-designated 8th Bombardment Squadron on 1 December 1939[28]
Returned to the United States in June 1919 and assigned to March Field, California
Redesignated in the Army Air Service as the 9th Squadron (Observation) on 14 March 1921; Inactivated on 29 June 1922, at March Field; Re-designated as the 9th Observation Squadron on 25 January 1923. Re-designated as the 9th Bombardment Squadron 24 March 1923; Organized by June 1929 in the Regular Army Reserve at Kelly Field, Texas. Activated on 1 April 1931, less Reserve personnel. Re-designated as the 9th Bombardment Squadron (Heavy) on 6 December 1939.[31]
Organized at Kelly Field, Texas Transferred to Chanute Field, Illinois, 7 July 1917 (First assigned unit to Chanute Field) AEF: 26 December 1917 – May 1919 Service Support Squadron 3d Aviation Instruction Center Issoudun Aerodrome
erroneously demobilized: Jun 1919 at Mitchell Field, New York; re-constituted at Bolling Field, D.C., Jul 1919; final demobilization 31 December 1919.[33]
Returned to the United States in June 1919, assigned to Fort Bliss, Texas; Participated in the Mexican Border Patrol August–November 1919
Constituted in the Army Air Service as the 11th Squadron (Observation) on 14 March 1921; Re-designated as the 11th Bombardment Squadron on 25 January 1923; Conducted bombing tests on obsolete warships off Chesapeake Bay 5 September 1923; Transferred on 5 December 1934, to Hamilton Field, California. Transferred on 2 September 1940, to Fort Douglas, Utah. Transferred on 18 January 1941, to Salt Lake City, Utah.
Ground elements departed from Salt Lake City 13 November 1941, and sailed from the port of San Francisco on 21 November on an army transport en route to the Philippines. Aircraft and crews began departing Muroc Field, California, on 6 December en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor 7 December 1941;[34] fought in the Pacific Theater during World War II; Inactivated on 2 November 1945.
Consolidated (11 January 1982) with 11th Pilotless Bomber Squadron, Light, which was constituted on 17 June 1954; Activated on 1 September 1954; Re-designated 11th Tactical Missile Squadron on 8 June 1955; Re-designated 11th Bomb Squadron on 24 June 1994,
Returned to the United States in June 1919, assigned to Scott Field, Illinois; Transferred on 13 October 1919, to Kelly Field, Texas, then on 9 January 1920, to Biggs Field, Texas. Participated in the Mexican Border Patrol January 1920 – May 1921 and Forest Fire Patrol May–August 1921
Constituted in the Army Air Service as the 12th Squadron (Observation) on 14 March 1921; Re-designated 12th Observation Squadron on 25 January 1923; Flew reconnaissance missions in April 1929 for the 10th Cavalry in the vicinity of Nogales, New Mexico, during the Escobar-Topete Revolution.[34]
Constituted in the Regular Army on 3 June 1919, at Rockwell Field, California, as the 104th Aero Squadron; Transferred on 6 July 1919, to Scott Field, Illinois. Transferred on 6 November 1919, less one flight, to Biggs Field, Texas. One flight operated from Camp Marfa, Texas, until 3 September 1920. Another flight operated from Post Field, Oklahoma.
Constituted in the Army Air Service as the 13th Squadron (Attack) on 14 March 1921; Re-designated as the 13th Attack Squadron on 25 January 1923. Inactivated on 27 June 1924, at Kelly Field; Organized in June 1924 in the Regular Army Reserve at Kelly Field, Texas. Conducted summer training at Fort Crockett, Texas; Activated on 1 November 1929, less Reserve personnel, at Barksdale Field, Louisiana;[34] Consolidated with 13th Aero Squadron, 16 October 1936,
Organized from: Aviation Company "A", Rockwell Field, California Re-designated: 1st Aviation School Squadron, August 1917 Re-designated: 14th Aero Squadron, August 1917 Instructional flying squadron Re-designated: Squadron A, Rockwell Field, California, July 1918 Demobilized: 23 November 1918
Constituted in the Army Air Corps on 1 April 1928, at Bolling Field, District of Columbia, as Air Corps Detachment, Bolling Field, and assigned to the Office of Chief of the Air Corps; re-designated 1 March 1935, as the 14th Bombardment Squadron; Consolidated on 8 June 1935, with the 14th Aero Squadron; Inactivated on 1 September 1936, at Bolling Field Organized by December 1937 in the Regular Army Reserve; Conducted summer training at Kelly Field, Texas
Activated on 1 February 1940, less Reserve personnel, at Hickam Field, TH; Re-designated as the 14th Bombardment Squadron (Heavy) on 20 November 1940. Transferred by flying to Clark Field, Philippines on 16 September 1941; Transferred on 6 December 1941, to Del Monte Field, Philippines;[34] Squadron was mostly wiped out in the 1941–1942 Battle of the Philippines, surviving personnel and aircraft transferred to Australia in December 1941, later reassigned to other units
Inactivated on 2 April 1946; disbanded on 19 August 1949; never again activated.[10]
Organized from: Aviation Company "B", Mineola, New York Re-designated: 2d Aviation School Squadron Re-designated: 15th Aero Squadron, August 1917 Training Squadron: Hazelhurst Field, New York Demobilized: 18 September 1919
Constituted in the Army Air Service as the 15th Squadron (Observation) on 14 March 1921; Re-designated as the 15th Observation Squadron on 25 January 1923; Consolidated in 1924 with the 15th Aero Squadron; Inactivated on 1 August 1927
Activated on 15 May 1928; Re-designated: 15th Observation Squadron (Medium) on 13 January 1942;[34]
Organized from: Aviation Company "C", Memphis, Tennessee Re-designated: 3d Aviation School Squadron Re-designated 16th Aero Squadron, August 1917 AEF: 8 January 1918 – 7 May 1919 Construction Squadron Demobilized: 22 May 1919
Constituted in the Army Air Service as the 16th Squadron (Observation) on 14 March 1921; Re-designated as the 16th Observation Squadron on 25 January 1923; Consolidated on 8 April 1924, with the 16th Aero Squadron;[34] Re-designated 16th Reconnaissance Squadron (Bomber) on 31 May 1943; Reconstituted on 19 September 1985, and consolidated with 16th Photographic Reconnaissance Squadron as 16th Tactical Electronic Warfare Squadron
The 147th Aero Squadron returned from AEF to Selfridge Field, Michigan in June 1919
Constituted in the Army Air Service as the 17th Squadron (Pursuit) on 14 March 1921; Re-designated as the 17th Pursuit Squadron on 25 January 1923; Reconstituted, and consolidated (17 October 1936) with 17th Aero Squadron
Departed from the port of San Francisco, California, about mid-November 1940 on the U.S.A.T. Etolin and arrived in the Philippines; Transferred on 5 December 1940, to Nichols Field, Philippines;[34] Squadron was wiped out in the 1941–1942 Battle of the Philippines, survivors reached Australia in March 1942 and were reassigned to other units, Inactivated on 2 April 1946
Activated and organized on 1 December 1971, as 17th Wild Weasel Squadron
Instructional flying squadron Re-designated: Squadron B, Rockwell Field, California, July 1918 Demobilized: November 1918 [35]
Constituted in the Army Air Service as the 18th Observation Squadron on 10 June 1922; Consolidated on 17 March 1925, with the 18th Aero Squadron; Reorganized and re-designated 40th Attack Squadron on 1 March 1935; consolidated unit re-designated as the 18th Headquarters Squadron, Bolling Field, District of Columbia.;[34] Reconstituted and consolidated (1964) with 18th Observation Squadron (Long Range, Light Bombardment) which was constituted on 1 March 1935; Re-designated: 408th Bombardment Squadron (Medium) on 22 April 1942; Inactivated on 29 April 1946
Re-designated 408th Bombardment Squadron (Medium) on 6 October 1958; Discontinued, and inactivated, on 1 January 1962.[10]
Formed as 14th Aero Squadron AEF: 1 January 1918 – 5 April 1919 Assigned to Seventh Aviation Instruction Center Demobilized: 14 April 1919
Constituted in the Army Air Service as the 19th Squadron (Pursuit) on 30 August 1921; Inactivated on 29 June 1922; Re-designated 19th Pursuit Squadron on 25 January 1923, and activated 1 May 1923;[34] Re-designated: 19th Fighter Squadron on 15 May 1942,
Returned to the United States in June 1919, assigned to Ellington Field, Texas; Constituted in the Army Air Service as the 20th Squadron (Bombardment) on 30 August 1921; Re-designated as the 20th Bombardment Squadron on 25 January 1923. Conducted bombing tests on obsolete warships off Chesapeake Bay 5 September 1923[34]
Organized from: Aviation Company "C", Chicago, May 1917 Re-designated: 4th Aviation School Squadron, May 1917 Re-organized as 16th Aero Squadron (II) in May 1917 Re-designated: 21st Aero Squadron, June 1917 at Scott Field, Illinois AEF: 23 January 1918 – 6 April 1919 AEF: Flying School Squadron, Third Air Instructional Center, Issoudun Aerodrome, France Demobilized: 14 April 1919
Constituted in the Army Air Service as the 21st Observation Squadron on 24 March 1923, consolidated with 21st Aero Squadron, same date; Demobilized on 1 October 1933. Reconstituted and consolidated with the 21st Observation Squadron on 2 December 1936; The 21st Observation Squadron was constituted in the Army Air Forces on 1 March 1935;[34] Re-designated: 411th Bombardment Squadron (Heavy) on 22 April 1942;Inactivated on 15 April 1946
Consolidated (19 September 1985) with 911th Air Refueling Squadron, Heavy, which was constituted on 28 May 1958,
The 135th Aero Squadron returned from AEF to Post Field, Oklahoma in June 1919
Constituted in the Army Air Service as the 22d Squadron (Observation) on 14 March 1921; Re-designated as the 22nd Observation Squadron on 25 January 1923; Consolidated on 17 April 1937, with the 22d Aero Squadron[34]
Formed as 18th Aero Squadron AEF: 25 July 1918 – 8 March 1919 Primarily trained in England as an aircraft maintenance squadron, did not see combat. Demobilized: 22 March 1919
Constituted in the Army Air Service as the 22d Squadron (Observation) on 14 March 1921; re-designated 23d Bombardment Squadron on 25 January 1923, Consolidated on 8 April 1924, with the 23d Aero Squadron[34]
Constituted in the Army Air Service as the 24th Squadron (Pursuit) on 14 March 1921; Re-designated as the 24th Pursuit Squadron on 25 January 1923; Consolidated on 8 April 1924, with the 24th Aero Squadron;[34] Served in Panama Canal Zone. Inactivated on 15 October 1946[10]
Constituted in the Army Air Service as the 25th Squadron (Bombardment) on 14 March 1921; Assigned to the Panama Canal Department; Re-designated as the 25th Bombardment Squadron on 25 January 1923; Consolidated (1924) with 25th Aero Squadron.[34]
Formed as: 1st Reserve Aero Squadron Re-designated: 26th Aero Squadron, September 1917 AEF 17 September 1917 – 27 May 1919 Instructional Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, 7 June 1919
Constituted in the Army Air Service as the 26th Squadron (Attack) on 14 March 1921; Re-designated as the 26th Attack Squadron on 25 January 1923; Consolidated on 8 April 1924, with the 26th Aero Squadron; Re-designated: 26th Bombardment Squadron on 6 December 1939;[34] Inactivated on 20 October 1948 Re-designated 26th Tactical Fighter Squadron on 24 September 1973; Activated on 30 September 1973,
Returned to the United States in June 1919, assigned to Selfridge Field, Michigan
Constituted in the Army Air Service as the 27th Squadron (Pursuit) on 14 March 1921; Re-designated as the 27th Pursuit Squadron on 25 January 1923;[34] Re-designated: 27th Fighter Squadron on 15 May 1942,
Constituted in the Army Air Service as the 28th Squadron (Bombardment) on 14 March 1921; Consolidated on 9 January 1922, with the 28th Aero Squadron; Inactivated on 28 June 1922, at Mather Field.
Activated on 1 September 1922, at Clark Field, PI, and assigned to the Philippine Department;[34] Squadron suffered severe losses in the 1941–1942 Battle of the Philippines, withdrawn to Australia, December 1941. Fought in Pacific Theater, Inactivated on 1 October 19834 Re-activated 1 July 1987,
Instructional flying squadron Re-designated: Squadron A, Brooks Field, Texas, July 1918 Demobilized: November 1918
Constituted in the Army Air Service as the 29th Pursuit Squadron on 23 March 1924; Consolidated in 1935 with the 29th Aero Squadron;[34] Re-designated 29th Fighter-Interceptor Squadron on 23 March 1953,
AEF 19 September 1917 – 5 April 1919 Instructional Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, 7 June 1919
Re-constituted in the Army Air Service as the 30th Bombardment Squadron on 25 January 1923; Transferred on 25 October 1935, to March Field, California. Re-designated as the 30th Bombardment Squadron (Heavy) on 6 December 1939. Transferred on 1 June 1941, to Albuquerque, New Mexico.
Departed from the port of San Francisco on 4 October 1941, on the U.S.A.T. Willard A. Holbrook and arrived at Manila, PI, on 23 October 1941. Transferred to Clark Field, PI, the same day.[34] Squadron suffered severe losses in the 1941–1942 Battle of the Philippines, was withdrawn to Australia in December 1941. Returned to combat in Pacific Theater in 1944, remained in Far East Air Force after World War II ended, engaged in strategic bombardment of North Korea, 1950–1953; inactivated 1 February 1963.
AEF: 16 September 1917 – 5 April 1919 Instructional Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, 14 April 1919
Re-constituted in the Army Air Service as the 31st Bombardment Squadron on 24 March 1923; Transferred on 5 December 1934, to Hamilton Field, California.
Departed from the port of San Francisco on the U.S.A.T. Republic on 1 February 1938, to reinforce the Hawaiian Department. Arrived at Honolulu, TH, on 8 February 1938, and transferred to Hickam Field, TH, the same day;[34] Squadron suffered severe losses in the Pearl Harbor Attack, was re-equipped and returned to combat in the Pacific Theater in 1942, remained in Far East Air Force after World War II ended, redesignated the 31st Strategic Reconnaissance Squadron 16 September 1947,[36] engaged in combat reconnaissance missions over North Korea, Jun – Nov 1950; transferred to Travis AFB, CA 15 November 1950; redesignated 31st Bombardment Squadron (Heavy) on 1 October 1955; transferred to Beale AFB, CA on 18 January 1960, inactivated 1 February 1963
AEF: 20 September 1917 – 5 April 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, 5 April 1919
Re-constituted in the Army Air Service as the 32nd Bombardment Squadron on 24 March 1923;[34] Deployed to European Theater of Operations (ETO) in August 1942; Discontinued, and inactivated, on 8 June 1964; Re-activated as 32d Air Refueling Squadron on 23 December 1964,
AEF: 16 September 1917 – 5 April 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, 5 April 1919
Re-constituted in the Army Air Service as the 33d Pursuit Squadron on 24 March 1923;[34] World War II service as part of the Iceland Base Command (IBC), Inactivated on 22 June 1945; Re-designated as 33d Fighter-Bomber Squadron on 3 March 1953, and re-activated
Formed as: 2d Company "H", Camp Kelly, Texas AEF: 19 September 1917 – 27 May 1919 Instructional Squadron, 2d Air Instructional Center, Tours Aerodrome Demobilized, 10 April 1919
Re-constituted in the Army Air Service as the 34th Pursuit Squadron on 24 March 1923; Reorganized and re-designated as the 34th Attack Squadron on 1 March 1935; Reorganized and re-designated as the 34th Bombardment Squadron on 17 October 1939;[34] World War II service in the Mediterranean Theater of Operations (MTO)
AEF: 20 September 1917 – 9 March 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, 19 March 1919
Re-constituted in the Army Air Service as the 35th Pursuit Squadron on 24 March 1923;[34] Re-designated: 35th Fighter Squadron on 15 May 1942; fought in Pacific Theater during World War II; Korean War 1950–1953
AEF: 19 September 1917 – 25 March 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, 7 April 1919
Re-constituted in the Army Air Service as the 36th Pursuit Squadron on 24 March 1923;[34] Re-designated: 36th Fighter Squadron on 15 May 1942; fought in Pacific Theater during World War II; Korean War 1950–1953
AEF: 18 September 1917 – 5 April 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, 7 April 1919
Re-constituted in the Army Air Service as the 37th Pursuit Squadron on 24 March 1923; Re-designated as the 37th Bombardment Squadron on 1 December 1939;[34] Deployed to European Theater of Operations (ETO) during World War II
Instructional flying squadron Re-designated: Squadron A, Chanute Field, Illinois, July 1918 Demobilized: November 1918
Constituted in the Army Air Service as the 37th Pursuit Squadron on 24 March 1923; Activated on 1 August 1933, at Selfridge Field, Michigan; Consolidated in 1933 with the 38th Aero Squadron, Reorganized and re-designated 38th Observation Squadron
Aircraft and crews began departing Hamilton Field, California, on 6 December en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor,[34] suffered severe damage and was returned to the United States. Re-designated: 427th Bombardment Squadron (Heavy) on 22 April 1942; Deployed to European Theater of Operations (ETO), 12 September 1942; Discontinued, and inactivated, on 1 January 1962.
Instructional flying squadron Re-designated: Squadron A, Rich Field, Texas, July 1918 Demobilized: November 1918
Constituted in the Army Air Service as the 39th School Squadron on 24 March 1923; Activated on 1 August 1927, at Kelly Field, Texas and attached to the Air Corps Advanced Flying School. Consolidated in 1933 with the 39th Aero Squadron; Inactivated on 1 September 1936; Reactivated on 1 February 1940, at France Field, CZ, and assigned to the Panama Canal Department; Returned to the United States 15 March 1944, re-designated: 101st Photographic Reconnaissance Squadron; inactivated 25 December 1945.[10]
Instructional flying squadron Re-designated: Squadron A, Selfridge Field, Michigan, July 1918 Demobilized: November 1918 [35]
Constituted in the Army Air Service as the 40th Squadron (School) on 10 June 1922; Re-designated as the 40th School Squadron on 25 January 1923. Consolidated on 8 April 1924, with the 40th Aero Squadron; Reorganized and re-designated 40th Attack Squadron on 1 March 1935, and attached to the Air Corps Advanced Flying School. Relieved from the Air Corps Advanced Flying School 1 September 1936, assigned to the General Headquarters Air Force, and inactivated at Kelly Field, Texas; disbanded on 1 July 1940.[34]
AEF: 4 March 1918 – 28 June 1919 Pursuit Squadron 5th Pursuit Group (Did not see combat) Demobilized: 2 July 1919
Constituted in the Army Air Service as the 41st Squadron (School) on 10 June 1922; Organized on 7 July 1922, at Kelly Field, Texas. Re-designated as the 41st School Squadron on 25 January 1923. Consolidated on 8 April 1924, with the 41st Aero Squadron; Reorganized and re-designated 1 March 1935, as the 41st Observation Squadron (Long Range, Amphibian), assigned to the 2nd Wing, and attached to the Air Corps Advanced Flying School. Re-designated as the 41st Reconnaissance Squadron on 1 September 1936; Inactivated at Kelly Field, Texas and re-organized on 20 January 1937, as a Regular Army Reserve unit at Love Field, Dallas, Texas; Activated on 1 February 1940, at Langley Field, Virginia;[34] deploying in early 1943 to Twelfth Air Force in North Africa. Engaged in long-range strategic bombing missions in the Mediterranean Theater of Operations (MTO) 1943–1945; Inactivated on 28 February 1946. Reactivated as SAC B-47 Squadron on 11 August 1958;
Instructional flying squadron Re-designated: Squadron I, Wilbur Wright Field, Ohio, July 1918 Demobilized: November 1918 [35]
Constituted in the Army Air Service as the 42d School Squadron on 10 June 1922 Consolidated on 8 April 1924, with the 42d Aero Squadron Reorganized and re-designated 42d Bombardment Squadron on 1 March 1935 Inactivated on 1 February 1963, as the 42d Bombardment Squadron (Heavy) at Wright-Patterson AFB, Ohio[10]
Re-designated and activated as 42d Attack Squadron, 9 November 2006, Creech AFB, Nevada.[37]
AEF: 25 October 1918 – 17 April 1919 Instructional Squadron Demobilized: 17 April 1919
Constituted in the Army Air Service as the 43d Squadron (School) on 10 June 1922; Organized on 7 July 1922, at Kelly Field, Texas. Re-designated as the 43rd School Squadron on 25 January 1923. Consolidated on 8 April 1924, with the 43rd Aero Squadron; Inactivated on 1 September 1936, at Kelly Field, Texas.;[10] Consolidated (1939) with the 43d Pursuit Squadron (Interceptor) which was constituted on 22 December 1939; Re-designated: 43d Fighter Squadron on 15 May 1942,
Instructional flying squadron Re-designated: Squadron K (later P), Wilbur Wright Field, Ohio. July 1918 Demobilized: November 1918
Constituted in the Army Air Service as the 44th Squadron (Observation) on 10 June 1922; Organized on 26 June 1922, at Post Field, Oklahoma; Re-designated as the 44th Observation Squadron on 25 January 1923. Consolidated on 8 April 1924, with the 44th Aero Squadron; Inactivated on 31 July 1927 Activated on 1 April 1931, at France Field, CZ; Re-designated: 430th Bombardment Squadron, 22 April 1942; Returned to the United States 31 October 1942; Re-designated: 430th Bombardment Squadron (Very Heavy) on 28 March 1944, saw combat in Pacific Theater; Inactivated on 14 April 1946[10]
Organized as: 2d Reserve Aero Squadron, Chandler Field, Pennsylvania Re-designated: 45th Aero Squadron, July 1917 Transferred to Gerstner Field, Louisiana, November 1917 Instructional flying squadron Re-designated: Squadron A, Gerstner Field, Louisiana, July 1918 Demobilized: November 1918 [35]
46th Aero Squadron
April 1918
Stationed at Ellington Field, Texas Hazelhurst Field, New York Roosevelt Field, New York Demobilized: January 1919[35]
Constituted in the Army Air Service as the 46th School Squadron on 10 June 1922 Consolidated on 8 April 1924, with the 46th Aero Squadron;stationed Brooks Field, TX, 1922-31. Relieved from the 11th School Group on 31 December 1931 Assigned to the Air Corps Primary Flying School, Randolph Field, Texas, 31 December 1931.[34] [Existed Randolph Field, TX, 12 Oct 1931-1941][38]
AEF: 19 March 1918 – July 1919 Service Squadron Demobilized: July 1919[35]
Constituted in the Army Air Service as the 47th School Squadron on 10 June 1922; Consolidated on 8 April 1924, with the 47th Aero Squadron; disbanded on 20 April 1944.[34]
AEF: 4 November 1917 – 29 July 1919 Airfield Construction Squadron, various stations in France Demobilized, 7 April 1919
Constituted in the Army Air Service as the 48th School Squadron on 10 June 1922 Consolidated on 8 April 1924, with the 48th Aero Squadron; Inactivated on 1 September 1931. Re-designated 48th Pursuit Squadron on 1 March 1935;[34] Re-designated 48th Fighter Squadron on 15 May 1942; Re-designated 48th Fighter-Interceptor Squadron on 11 September 1952,
Constituted in the Army Air Service as the 49th Squadron (Bombardment) on 14 March 1921; Re-designated as the 49th Squadron (Bombardment) on 14 March 1921. Attached to the 1st Provisional Air Brigade 6 May – 3 October 1921, while supporting the battleship bombing tests off the Virginia coast. Transferred on 30 June 1922, to Langley Field, Virginia. Transferred on 10 August 1922, to Phillips Field, Maryland. Attached to the Ordnance Department at Aberdeen Proving Ground to conduct tests with newly developed aerial bombs August 1922 – January 1928. Re-designated as the 49th Bombardment Squadron on 25 January 1923; Consolidated on 16 October 1936, with the 49th Aero Squadron; Unit B-17s located the Italian luxury liner S.S. Rex about 725 miles out to sea on the famous long range interception mission conducted on 12 May 1938; During World War II, deployed to the Mediterranean Theater of Operations (MTO); Inactivated on 1 April 1963
Constituted in the Army Air Service as the 50th Squadron (Observation) on 14 March 1921; Attached to the 1st Provisional Air Brigade 6 May – 3 October 1921, while supporting the battleship bombing tests off the Virginia coast; Inactivated on 1 August 1927; Activated on 1 November 1930, less Reserve personnel, at Luke Field, Hawaii; Re-designated as the 50th Reconnaissance Squadron;[34] Re-designated 431st Bombardment Squadron (Heavy) on 22 April 1942; Inactivated on 20 October 1947
Organized as a construction squadron at Kelly Field, Texas Transferred to Ellington Field, Texas, Apr 1918 Transferred to Henry J. Damm Field, New York, Nov 1918
Demobilized: Garden City, New Jersey, January 1919[35]
52d Aero Squadron
August 1917
Organized as a Construction Squadron at Kelly Field, Texas Re-designated 464th Aero Squadron (Construction and repair), February 1918 AEF: February 1918 – January 1919 Demobilized: February 1919[35]
Constituted in the Army Air Service as the 53d School Squadron, and assigned to the 14th School Group, Brooks Field, Texas on 6 February 1923; Consolidated on 14 October 1936, with the 52d Aero Squadron.[34]
Subsequent history and lineage undetermined.
53d Aero Squadron
August 1917
Organized as a Construction Squadron at Kelly Field, Texas Re-designated 465th Aero Squadron (Construction and repair), February 1918 AEF: February 1918 – January 1919 Demobilized: February 1919[35]
Constituted in the Army Air Service as the 53d School Squadron, and assigned to the 15th School Group, March Field, California on 6 February 1923; Consolidated on 14 October 1936, with the 53d Aero Squadron; disbanded on 20 April 1944.[34]
54th Aero Squadron
August 1917
Organized as a Construction Squadron at Kelly Field, Texas Re-designated 466th Aero Squadron (Construction), February 1918 AEF: February 1918 – January 1919 Demobilized: February 1919[35]
Constituted in the Army Air Service as the 54th School Squadron, and assigned to the 15th School Group, March Field, California on 6 February 1923; Re-designated as the 58th Service Squadron on 16 January 1923; Reorganized and re-designated 54th Bombardment Squadron on 1 March 1935, assigned to the 2d Bombardment Group, and attached to the Air Corps Tactical School, Maxwell Field, Alabama. Consolidated on 14 October 1936, with the 54th Aero Squadron; disbanded on 1 May 1942.[34]
Organized as a construction squadron at Kelly Field, Texas Re-designated: 468th Aero Squadron, Feb 1918 AEF: Oct 1917 – Jun 1919; Assigned to American Air Service Acceptance Park No. 1, Orly Aerodrome.
Demobilized: July 1919, Mitchell Field, New York [35]
57th Aero Squadron
August 1917
Organized as a construction squadron at Kelly Field, Texas Re-designated: 469th Aero Squadron, Feb 1918 AEF: Oct 1917 – Jun 1919; Assigned to 3d Air Instructional Center, Issoudun Aerodrome.
Demobilized: July 1919, Mitchell Field, New York [35]
58th Aero Squadron
August 1917
Organized as a construction squadron at Kelly Field, Texas Transferred to Aviation General Supply Depot, Camp Morrision, Virginia, October 1917 Re-designated: 470th Aero Squadron, Feb 1918 AEF: Oct 1917 – Jun 1919; Assigned to RAF Aerodrome No. 6, Lopcome Corner, England.
Demobilized: July 1919, Mitchell Field, New York [35]
59th Aero Squadron
August 1917
Organized as a construction squadron at Kelly Field, Texas Transferred to Camp Alfred Vail, New Jersey, Oct 1917 Transferred to Aviation General Supply Depot, Camp Morrision, Virginia, Nov 1917 Re-designated: 471st Aero Squadron, Feb 1918 AEF: Jan 1918 – Jun 1919; Duties Undetermined.
Demobilized: July 1919, Mitchell Field, New York [35]
60th Aero Squadron
August 1917
Organized as a construction squadron at Kelly Field, Texas Transferred to Aviation General Supply Depot, Camp Morrision, Virginia, Oct 1917 Re-designated: 472d Aero Squadron, Feb 1918 AEF: Jan 1918 – Jun 1919; Duties Undetermined.
Demobilized: July 1919, Mitchell Field, New York [35]
61st Aero Squadron
August 1917
Organized as a construction squadron at Kelly Field, Texas Transferred to Aviation General Supply Depot, Camp Morrision, Virginia, Oct 1917 Re-designated: 473d Aero Squadron, Feb 1918 AEF: Jan 1918 – Jun 1919; Duties Undetermined.
Demobilized: July 1919, Mitchell Field, New York [35]
Organized as a construction squadron at Kelly Field, Texas Transferred to Aviation General Supply Depot, Camp Morrision, Virginia, Oct 1917 Re-designated: 474th Aero Squadron, Feb 1918 AEF: Jan 1918 – Jun 1919; Duties consisted of constructing temporary airfields for the First Army Air Service.
Demobilized: July 1919, Mitchell Field, New York [35]
Transferred from Kelly Field, Texas Re-designated:Instructional flying squadron Squadron A, Park Field, Tennessee, July 1918 Demobilized: November 1918 [35]
Constituted in the Army Air Service on 6 June 1921, as Air Park No. 10, Luke Field, Hawaii. Re-designated as the 65th Service Squadron on 22 December 1922; The 65th Aero Squadron was consolidated with the 65th Service Squadron on 16 October 1936; Reorganized and re-designated 25 January 1938, as Base Headquarters and 17th Air Base Squadron
Disbanded 1 April 1943, as HHS, 17th Service Group.[34]
Instructional flying squadron Re-designated:Squadron A, Eberts Field, Arkansas, July 1918 Demobilized: November 1918 [35]
Constituted in the Army Air Service on 2 June 1921, as Air Park Ho 11, Nichols Field, Philippines; Re-designated as the 66th Service Squadron on 25 January 1923.; The 66th Aero Squadron was consolidated with the 66th Service Squadron in October 1936; Consolidated unit reorganized and re-designated as Base Headquarters and 20th Air Base Squadron.; Reorganized and re-designated 1 September 1940, as HHS, 20th Air Base Group (Reinforced)[34]
Transferred from Rockwell Field, California Re-designated:Instructional flying squadron Squadron A, March Field, California, July 1918 Demobilized: November 1918 [35]
Instructional flying squadron Re-designated:Squadron B, Ellington Field, Texas, July 1918 Demobilized: November 1918 [35]
Constituted in the Army Air Service as the 70th Service Squadron, and assigned to the 14th School Group, Kelly Field, Texas on 6 February 1923; Consolidated on 27 July 1932, with the 70th Aero Squadron; Inactivated on 1 September 1936, at Hamilton Field, California. Personnel and equipment concurrently transferred to the Base Headquarters and 5th Air Base Squadron.[34]
AEF: 4 September 1918 – 29 June 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: 11 July 1919[39]
Constituted in the Army Air Service on 6 February 1923, as the 72d Bombardment Squadron. Consolidated on 8 April 1924, with the 72d Aero Squadron[34]
AEF: 5 September 1918 – 19 June 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: 4 July 1919 [39]
Constituted in the Regular Army Reserve on 18 October 1927, as the 73d Headquarters Squadron; Re-designated as the 73d Pursuit Squadron on 8 May 1929; Designated mobilization training station was Dodd Field, Texas, 1927–31.
Activated on 15 July 1931, less Reserve personnel, at March Field, California; Reorganized and re-designated 73d Attack Squadron on 1 March 1935; Consolidated on 5 June 1936, with the 73d Aero Squadron[34]
Construction Squadron, did not deploy to AEF Demobilized: 28 January 1919
Constituted in the Regular Army Reserve on 18 October 1927, as the 74th Attack Squadron; Re-designated as the 74th Pursuit Squadron on 8 May 1929; Organized Reserve officers assigned to the unit participated in summer training at Fort Crockett, Texas, 1927–33
Activated on 1 October 1933, less Reserve personnel, at Albrook Field, Canal Zone. Consolidated in October 1936 with the 74th Aero Squadron;[34] Served in Panama Canal Zone during World War II as the 74th Bombardment Squadron, equipped with B-24 Liberators. Inactivated 1 November 1946.[10]
Re-designated: 135th Bombardment Squadron (Medium) on 27 March 1951, as part of federalized New York Air National Guard; Activated on 1 May 1951; Inactivated on 1 December 1952.[10]
Instructional flying squadron Re-designated:Squadron D, Gerstner Field, Louisiana, July 1918 Demobilized: November 1918[35]
Constituted in the Regular Army Reserve on 18 October 1927, as the 75th Attack Squadron; Organized Reserve officers assigned to the unit participated in summer training at Fort Crockett, Texas, 1928–30
Activated on 15 September 1930, less Reserve personnel, at Wheeler Field, Hawaii; Consolidated on 16 October 1936, with the 75th Aero Squadron; Reorganized and re-designated Base Headquarters and 18th Air Base Squadron (Single) on 1 March 1938; disbanded 1 April 1943.[34]
Transferred from Carlstrom Field Instructional flying squadron Re-designated:Squadron A, Dorr Field, Florida, July 1918 Demobilized: November 1918 [35]
Instructional flying squadron Re-designated:Squadron A, Barron Field, Texas, July 1918 Demobilized: November 1918
Constituted in the Regular Army Reserve on 18 October 1927, as the 77th Observation Squadron; Re-designated as the 77th Pursuit Squadron on 8 May 1929; Conducted annual summer training at Love Field or Hensley Field, Texas.
Activated on 15 November 1930, less Reserve personnel, at Mather Field, California; Currently: 77th Fighter Squadron, Shaw AFB, South Carolina[10]
Instructional flying squadron Re-designated:Squadron A, Hicks Field, Texas, July 1918 Demobilized: November 1918
Constituted in the Regular Army Reserve on 18 October 1927, as the 78th Observation Squadron; Re-designated as the 78th Pursuit Squadron on 8 May 1929; Organized Reserve officers assigned to the unit participated in summer training at Kelly Field 1927–30. Designated mobilization training station was Dodd Field, Texas, 1927–30.
Activated on 1 April 1931, less Reserve personnel, at France Field, Canal Zone; Consolidated in 1933 with the 78th Aero Squadron[34]
First 80th Aero Squadron (Construction): see 492nd Aero Sqn
Transferred from Rich Field, Texas Instructional flying squadron Re-designated: Squadron C, Post Field, Oklahoma, July 1918 Demobilized: November 1918 [35]
Constituted on 18 October 1927, as the 80th Observation Squadron. Re-designated as the 80th Service Squadron on 8 May 1929. Activated on 15 November 1930, at Mather Field, California. The 80th Aero Squadron was consolidated with the 80th Service Squadron 24 August 1932. Transferred to Albrook Field, Canal Zone, same day.; Reorganized and re-designated Base Headquarters and 15th Air Base Squadron on 1 September 1937; disbanded on 1 November 1943[34]
Transferred from Rich Field, Texas Instructional flying squadron Re-designated:Squadron D, Post Field, Oklahoma, July 1918 Demobilized: November 1918 [35]
Constituted on 1 March 1935, as the Station Complement, Kelly Field and concurrently activated at Kelly Field, Texas. Reorganized and re-designated 1 September 1936, as the 12th Air Base Squadron and assigned to the Air Corps Advanced Flying School. Concurrently consolidated with the 81st Service Squadron. The 81st Aero Squadron was consolidated with the 81st Service Squadron 1 December 1936.; Reorganized and re-designated 1 September 1940, as HHS, 12th Air Base Group (Special).[34]
AEF: 5 March 1918 – 20 July 1919 Corps Observation Squadron Squadron was in training in England but did not reach the front until 4 November 1918. Assigned to Second Army Observation Group and IV Corps Observation Group but did not see any combat.
AEF: 25 March 1918 – 23 May 1919 Advance Section, Services of Supply (SOS) Air Park Squadron Advanced Branch, 1st Air Depot Behonne Aerodrome Demobilized: 26 May 1919[39]
Constituted in the Army Air Corps on 1 March 1935, attached to the Air Corps Tactical School, and organized at Maxwell Field, Alabama; Inactivated on 1 September 1936, at Maxwell Field; Consolidated on 1 December 1936, with the 86th Aero Squadron
Activated on 1 February 1940, at Wheeler Field, Hawaii as 86th Observation Squadron; Suffered devastating losses during Pearl Harbor Attack.[34]
Transferred from Selfridge Field, Michigan Instructional flying squadron Re-designated: Squadron B, Park Field, Tennessee, Julyl 1918 Demobilized: November 1918
Constituted in the Army Air Corps on 1 March 1935, assigned to the 20th Pursuit Group, and organized at Maxwell Field, Alabama, with personnel from the 51st and 54th School Squadrons; Attached to the Air Corps Tactical School. Inactivated on 1 September 1936, at Maxwell Field, Alabama.; Consolidated on 1 December 1936, with the 87th Aero Squadron; Organized on 1 March 1935; Inactivated 1 September 1936;[34] Reconstituted, and consolidated (21 March 1979) with unit constituted as 87th Pursuit Squadron (Interceptor) on 13 January 1942,
Returned to the United States on 27 June 1919; Transferred on 5 September 1919, to Langley Field, Virginia.
Constituted in the Army Air Service as the 88th Squadron (Observation) on 14 March 1921; Attached to the 1st Provisional Air Brigade 6 May – 3 October 1921, while supporting the battleship bombing tests off the Virginia coast; Re-designated as the 88th Observation Squadron on 25 January 1923; Re-designated as the 88th Reconnaissance Squadron (Long Range) on 6 December 1939.
Ground elements departed from Fort Douglas 13 November 1941, and sailed from the port of San Francisco on 21 November on an army transport en route to the Philippines. Aircraft and crews began departing Muroc Field, California, on 6 December en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor[34]
Re-designated: 436th Bombardment Squadron (Heavy) 22 April 1942,
AEF: 16 November 1917 – 25 March 1919 Construction and maintenance squadron Demobilized: 19 May 1919
Constituted in the Army Air Corps on 1 March 1935, as the 89th Observation Squadron; Consolidated in October 1936 with the 89th Aero Squadron;[34] Re-designated: 432d Bombardment Squadron (Medium) on 22 April 1942; inactivated 26 November 1945.[10]
Returned to the United States, June 1919 and was assigned to Kelly Field, Texas; Transferred on 29 November 1919, to Sanderson, Texas. Participated in the Mexican Border Patrol operations September 1919 – June 1921
Constituted in the Army Air Service as the 90th Squadron (Attack) on 14 March 1921; Re-designated as the 90th Attack Squadron on 25 June 1923; Transferred on 1 July 1926, to Fort Crockett, Texas. Flew border reconnaissance missions from Fort Huachuca, Arizona, during the Escobar-Topete Revolution 7 April – 2 May 1929; Transferred on 27 February 1935, to Barksdale Field, Louisiana. Reorganized and re-designated 90th Bombardment Squadron (Light) on 15 September 1939[34]
Returned to the United States June 1919 at Mitchel Field, New York; Transferred to Rockwell Field, California, on 29 September 1919; Transferred on 3 November 1919, to Mather Field, California. Transferred on 24 January 1920, to Ream Field, California. Participated in Mexican Border Patrol operations January 1920 – January 1921
Constituted in the Army Air Service as the 91st Squadron (Observation) on 14 March 1921; Re-designated 91st Observation Squadron on 25 January 1923[34]
AEF: 29 October 1917 – 4 December 1918 Trained for night bombardment, never saw combat Demobilized 21 December 1918
Constituted in the Army Air Corps as the 17th Reconnaissance Squadron (Light) on 20 November 1940; Consolidated with the 92d Aero Squadron in 194; Re-designated 433d Bombardment Squadron (Medium) on 22 April 1942; Re-designated 867th Bombardment Squadron, Heavy on 21 October 1943,
Constituted in the Regular Army Reserve on 8 May 1929, as the 93rd Attack Squadron; Inactivated on 31 October 1936, at Fort Crockett, Texas by relief of Reserve personnel. Chicago, Illinois, designated as headquarters location on reorganization, but the unit was never reorganized at that location
Consolidated in October 1936 with the 93rd Aero Squadron; Re-designated as the 93rd Bombardment Squadron (Heavy) on 20 October 1939, and organized at March Field, California; Transferred in June 1941 to Albuquerque, New Mexico. Departed from the port of San Francisco on 4 October 1941, on the U.S.A.T. Willard A. Holbrook and arrived at Manila, Philippines, on 23 October 1941. Transferred to Clark Field, Philippines, the same day. Transferred on 6 December 1941, to Del Monte Field, Philippines.;[34] Engaged in 1941–1942 Battle of the Philippines before being withdrawn in late December 1941 to Australia.
Returned to the United States, June 1919 and stationed at Ellington Field, Texas; Participated in Mexican Border Patrols August 1919-10 January 1920
Constituted in the Army Air Service as the 96th Squadron (Bombardment) on 14 March 1921; Attached to the 1st Provisional Air Brigade 20 May – 26 October 1921, while supporting the battleship bombing tests off the Virginia coast[34]
AEF: 15 November 1917 – 20 January 1919 Served as engine maintenance squadron Demobilized 3 February 1919[41]
Constituted in the Army Air Corps on 1 March 1935; Consolidated on 5 June 1936, with the 97th Aero Squadron;[34] Served during World War II as 97th Tactical Reconnaissance Squadron, a training unit for desert warfare in the Mojave Desert, Southern California. Disbanded on 15 April 1944.[10][41]
Re-activated as: 6949th Security Squadron, 1 March 1979; Reconstituted and consolidated (1 October 1993) with the 6949th Security Squadron and re-designated the 97th Intelligence Squadron on 1 October 1993,
Organized as the 98th Aero Squadron (Service) at Kelly Field, Texas AEF: 7th AIC, Aulnat, October 1917 – January 1919 Demobilized: February 1919[35]
Constituted in the United States Army Air Corps as the 98th School Squadron, and assigned to the Air Corps Technical School, Chanute Field, Illinois on 1 August 1933; Consolidated in 1934 with the 98th Aero Squadron; Reorganized and re-designated 98th Service Squadron on 1 March 1935. Reorganized and re-designated 10th Air Base Squadron on 1 July 1936.[34] Subsequent lineage undetermined.
Returned to the United States, June 1919 and stationed at Hazelhurst Field, New York; Transferred on 17 August 1919, to Bolling Field, District of Columbia.
Constituted in the Army Air Service as the 99th Squadron (Observation) on 14 March 1921[34]
AEF: February 1919 – June 1919 Day Bombardment Squadron Assigned to 2d Day Bombardment Group (Did not see combat) Demobilized: 30 June 1919 [35][41]
Constituted in the Army Air Corps as the 100th Service Squadron on 1 March 1935 Consolidated in 1935 with the 100th Aero Squadron; Consolidated with the Station Complement, Bolling Field, District of Columbia and consolidated unit re-designated Base Headquarters and 14th Air Base Squadron on 1 September 1936.[34] Subsequent history/lineage undetermined.
AEF: 1 January 1918 – 5 April 1919 Service Squadron Demobilized: 14 April 1919
Constituted in the National Guard in 1921 as the 101st Squadron (Observation), and allotted to the state of Massachusetts; federally recognized on 18 November 1921, at Boston. Stationed at Boston Airport; Consolidated on 20 October 1936, with the 101st Aero Squadron
AEF: 9 December 1917 – 19 April 1919 Service Squadron Demobilized: 1 May 1919 [41]
Constituted in the National Guard on 30 December 1920, as the 102nd Squadron (Observation), and allotted to the state of New York; Organized on 17 November 1921, from the Observation Squadron, New York National Guard (organized on 22 March 1921, at Hempstead, Long Island, New York, with personnel from K Company, 14th Infantry, New York National Guard). Concurrently federally recognized at Hempstead; Consolidated on 20 October 1936, with the 102d Aero Squadron
Constituted in the Army Air Service as the 94th Squadron (Pursuit) on 14 March 1921; Re-constituted and consolidated with the 103d Aero Squadron, 8 April 1924; consolidated unit designated 94th Pursuit Squadron
AEF: 8 December 1917 – 27 April 1919 Service Squadron Demobilized: 8 May 1919[46]
Constituted in the National Guard in 1921 as the 136th Squadron (Observation) and allotted to the state of Tennessee; Originally organized in the fall of 1920, the squadron was federally recognized on 4 December 1921, at Blackwood Field, Nashville, Tennessee.
Transferred from Carlstrom Field Instructional flying squadron Re-designated:Squadron B, Dorr Field, Florida, July 1918 Demobilized: November 1918 [35]
Instructional flying squadron Re-designated:Squadron C, Dorr Field, Florida, July 1918 Demobilized: November 1918 [35]
Constituted in the National Guard in 1921 as the 110th Squadron (Observation) and allotted to the state of Missouri; Organized and federally recognized on 23 June 1923, at Anglum Field, St. Louis, Missouri. 1st Lt. Charles Lindbergh was a member of the squadron 1925–27.
Transferred from Dorr Field, Florida Instructional flying squadron Re-designated: Squadron C, Carlstrom Field, Florida, July 1918 Demobilized: November 1918 [35]
Constituted in the National Guard in 1921 as the 111th Squadron (Observation) and allotted to the state of Texas; Organized in April 1923 and federally recognized on 29 June 1923, at Ellington Field, Houston, Texas.
Instructional flying squadron Re-designated:Squadron B, Chanute Field, Illinois, July 1918 Demobilized: November 1918 [35]
Constituted in the National Guard in 1921 as the 112th Squadron (Observation) and allotted to the state of Ohio; Organized and federally recognized on 20 June 1927, at Cleveland Airport, Cleveland, Ohio
Service Squadron, Aviation General Supply Depot Americus, Georgia Demobilized: December 1919[35]
Depot was established in March 1918 as a general supply depot. The depot was located adjacent to Souther Field. It supplied materiel to aviation fields and in particular to the Air Service training fields: Park Field, Tennessee, Taylor Field, Alabama, Payne Field, Mississippi, Carlstrom Field, and Dorr Field, Florida.[47] The 112th and 287th Aero Squadrons were consolidated into "Aviation Supply Depot Detachment" 1 January 1919.[35]
Instructional flying squadron Re-designated:Squadron C, Ellington Field, Texas, July 1918 Demobilized: November 1918[35]
Constituted in the National Guard in 1921 as the 113th Squadron (Observation) and allotted to the state of Indiana; Organized and federally recognized on 20 June 1927, at Cleveland Airport, Cleveland, Ohio
Organized as 5th Aviation School Squadron Re-designated 119th Aero Squadron, September 1917 Re-designated: 11th Detachment, Air Service Aircraft Production, August 1918 Langley Field, Virginia Demobilized: 29 May 1919
Constituted in the National Guard in 1921 as the 119th Squadron (Observation) and allotted to the state of New Jersey; Organized and federally recognized on 30 January 1930, at Newark Airport, Newark, New Jersey,
AEF: 9 March 1918 – 7 May 1919 1919 Service Squadron Demobilized: 17 May 1919[46]
Constituted in the National Guard in 1921 as the 120th Squadron (Observation) and allotted to the state of Colorado; Organized and federally recognized on 27 January 1923, at Denver Municipal Airport, Denver, Colorado, with Flight A located at Denver and Flight B at Pueblo
Returned to the United States in June 1919 and Stationed at Post Field, Oklahoma; Constituted in the Army Air Service as the 22d Squadron (Observation) on 14 March 1921,
Constituted in the Army Air Corps as the 341st Fighter Squadron on 24 September 1942; Inactivated on 10 May 1946
Constituted in the National Guard on 24 May 1946, as the 141st Fighter Squadron, and allotted to the state of New Jersey; 141st Aero Squadron (Pursuit), was reconstituted and allotted to the State of New Jersey and consolidated with the 141st Tactical Fighter Squadron, 8 September 1973,
AEF: 9 March 1918 – 23 January 1919 Service Squadron Demobilized: 1 February 1919 [50]
Constituted in the National Guard in 1921 as the 154th Squadron (Observation), assigned to the 320th Observation Group, and allotted to the Seventh Corps Area. Allotted to the Organized Reserve as a Deferred National Guard unit, and re-designated as the 564th Observation Squadron. Withdrawn from the Organized Reserve on 10 September 1925, and allotted to the Arkansas National Guard as the 154th Observation Squadron; Organized and federally recognized on 24 October 1925, at Little Rock Airport, Little Rock, Arkansas.; Consolidated on 20 October 1936, with the 154th Aero Squadron
AEF: 4 March 1918 – March 1919 Night Bombardment squadron, did not reach front lines by the time of the armistice. Demobilized: March 1919
Was the first night bombardment squadron in the AEF. Flew Dayton-Wright DH-4s from 1st Air Depot after the armistice looking for crashed aircraft for recovery.[35][50]
156th Aero Squadron
10 December 1917
AEF: 18 March 1918 – 25 November 1918 Arrived New York City on 2 December 1918, and was mustered out at Air Service Depot, Garden City, Long Island, N.Y.
Quarantined in U.S. for measles, mumps, and scarlet fever which delayed departure for AEF. It also probably prevented the squadron from seeing service in France before armistice as their departure was scheduled four days later. Squadron was proud of helping RAF run the aerodrome at TADCASTER (Bramham Moor), Yorkshire during Spanish Influenza epidemics.[51]
157th Aero Squadron
10 December 1917
AEF: 5 March 1918 – December 1918 Service support squadron II Corps Aeronautical School Chatillion-sur-Seine Aerodrome Demobilized: December 1918[35][50]
158th Aero Squadron
18 December 1917
AEF: 9 September 1918 – May 1919 Trained as Pursuit Squadron in England, never entered combat Demobilized: June 1919
Squadron was torpedoed on SS Tuscania, 5 February 1918, during overseas transport. Reformed in England but never reached combat.[35][50]
159th Aero Squadron
10 December 1917
AEF: 2 November 1918 – March 1919 Trained as Day Bombardment Squadron in England, never entered combat Demobilized: March 1919
Squadron was torpedoed on SS Tuscania, 5 February 1918, during overseas transport. Reformed in England but never reached combat.[35][50]
Transferred from Kelly Field, Texas Instructional flying squadron Re-designated:Squadron C, Park Field, Tennessee, July 1918 Demobilized: November 1918 [35]
161st Aero Squadron
12 December 1917
AEF: 4 March 1918 – May 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 5th Air Depot Vinets Aerodrome Demobilized: May 1919[35][39][50]
162d Aero Squadron
17 December 1917
AEF: 5 March 1918 – February 1919 Trained as Pursuit Squadron in England, never entered combat Demobilized: February 1919[35][50]
Transferred from Ellington Field, Texas Instructional flying squadron Re-designated:Squadron A, Payne Field, Mississippi, July 1918 Demobilized: November 1918 [35]
176th Aero Squadron
19 December 1917
AEF: 4 March 1918 – March 1919 Trained as Service support squadron in England Demobilized: March 1919[35][50]
Instructional flying squadron Re-designated:Squadron E, Eberts Field, Arkansas, July 1918 Demobilized: November 1918 [35]
182d Aero Squadron
22 November 1917
AEF: 31 May 1918 – March 1919 Trained as Service support squadron in England Demobilized: March 1919[35][50]
183d Aero Squadron
December 1917
AEF: May 1918 – September 1919 Re-designated: 1st Air Park V Corps Observation Group Aircraft/Vehicle maintenance and supply unit Demobilized: September 1919[3][35]
184th Aero Squadron
2 December 1917
AEF: 7 July 1918 – March 1919 Trained as Service support squadron in England Demobilized: March 1919[35][50]
Transferred from Rockwell Field, California Instructional flying squadron Re-designated:Squadron B, March Field, California, July 1918 Demobilized: November 1918 [35]
218th Aero Squadron
January 1918
AEF: June 1918 – June 1919 Re-designated: 4d Air Park 1st Pursuit Group Aircraft/Vehicle maintenance and supply unit Demobilized: July 1919[35]
Instructional flying squadron Re-designated:Squadron B, Scott Field, Illinois, July 1918 Demobilized: November 1918 [35]
222d Aero Squadron
16 December 1917
AEF: 18 March 1918 – June 1919 In training in England entire period Demobilized: July 1919[35][54]
223d Aero Squadron
10 January 1918
AEF: 29 August 1918 – June 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919[35][39][54]
227th Aero Squadron
12 January 1918
AEF: 13 July 1918 – June 1919 Service support squadron 7th Aviation Instruction Center Clermont-Ferrand Aerodrome Demobilized: July 1919[35][54]
Transferred from Kelly Field, Texas Instructional flying squadron Re-designated:Squadron B, Payne Field, Mississippi, July 1918 Demobilized: November 1918 [35]
Transferred from Kelly Field, Texas Instructional flying squadron Re-designated:Squadron C, Payne Field, Mississippi, July 1918 Demobilized: November 1918 [35]
AEF: July 1918 – June 1919 Re-designated: 3d Air Park V Corps Balloon Group Aircraft/Vehicle maintenance and supply unit Demobilized: June 1919[3][35]* Constituted in the Army Air Service as Air Park No. 3, and assigned to the 2d Wing (Provisional), Langley Field, Virginia on 30 August 1921; Re-designated as the 58th Service Squadron on 16 January 1923; Consolidated on 8 April 1924, with Air Park No. 3; Consolidated on 1 September 1936, with HHS, 8th Pursuit Group.[34]*Subsequent lineage and history undetermined.
257th Aero Squadron
14 February 1918
AEF: 12 June 1918 – April 1919 Instructional flying squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: April 1919[35]
AEF: 12 June 1918 – 1 August 1919 Corps Observation Squadron Demobilized 1 August 1919 [35]
259th Aero Squadron
14 February 1918
AEF: 31 July 1918 – December 1918 In training in England entire period. Demobilized: December 1918[35]
260th Aero Squadron
14 February 1918
AEF: 31 July 1918 – December 1918 In training in England entire period. Demobilized: December 1918[35]
261st Aero Squadron
7 February 1918
AEF: 31 July 1918 – December 1918 In training in England entire period. Demobilized: December 1918[35]
264th Aero Squadron
13 January 1918
AEF: 6 March 1918 – December 1918 In training in England entire period. Demobilized: December 1918 [35]
266th Aero Squadron
6 January 1918
AEF: 27 August 1918 – December 1918 Service support squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: December 1918[35]
267th Aero Squadron
26 January 1918
AEF: 5 August 1918– December 1918 In training in England entire period. Demobilized: December 1918 [35]
269th Aero Squadron
26 January 1918
AEF: 5 August 1918 – July 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919[35][39]
270th Aero Squadron
8 February 1918
AEF: 26 August 1918 – July 1918 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919[35][39]
AEF: 27 August 1918 – 13 June 1919 Corps Observation Squadron Demobilized 13 June 1919 [35]
279th Aero Squadron
February 1918
AEF: September 1918 – March 1919 Re-designated: 5th Air Park 2d Pursuit Group Aircraft/Vehicle maintenance and supply unit Demobilized: March 1919[35]
281st Aero Squadron
8 February 1918
AEF: 26 August 1918 – July 1918 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919[35][39]
Instructional flying squadron Re-designated:Squadron T, Ellington Field, Texas, July 1918 Demobilized: November 1918 [35]
287th Aero Squadron
April 1918
Service Squadron at Wilbur Wright Field, Ohio, May 1918. Transferred to Chanute Field, Illinois, June 1918 and re-designated "Squadron D", July 1918. Re-designated 287th Aero Squadron and transferred to Aviation General Supply Depot Americus, Georgia, December 1918[35]
Depot was established in March 1918 as a general supply depot.[47] The 112th and 287th Aero Squadrons were consolidated into "Aviation Supply Depot Detachment" 1 January 1919.[35]
Transferred from Rockwell Field, California Instructional flying squadron Re-designated:Squadron C, March Field, California, July 1918 Demobilized: November 1918 [35]
Instructional flying squadron Re-designated:Squadron D, Mather Field, California, July 1918 Demobilized: November 1918 [35]
300th to 324th Aero Squadrons
Aero Squadron
Established
World War I
Notes/Subsequent History
302d Aero Squadron
June 1918
Organized as the 302d Aero Squadron (Service) at Carlstrom Field, Florida Re-designated, Squadron "F", Carlstrom Field Demobilized: December 1918[35]
Constituted in the Organized Reserve (New York) as the 302d Observation Squadron on 24 June 1921; Consolidated on 24 November 1936, with the 302d Aero Squadron
Organized as the 303d Aero Squadron (Provisional) at Ellington Field, Texas Re-designated 303d Aero Squadron (Service), June 1918; Squadron "K", Ellington Field, July 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (New Jersey) as the 303d Observation Squadron on 24 June 1921; Col. Charles A. Lindbergh, Air Corps Reserve, was attached to the squadron in June 1932 for summer training at Mitchel Field, New York; consolidated on 24 November 1936, with the 303d Aero Squadron
Inactivated in August 1937; disbanded on 31 May 1942[34]
306th Aero Squadron
July 1918
Organized as the 306th Aero Squadron (Service) at Camp Greene, North Carolina AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Tennessee) as the 306th Observation Squadron on 24 June 1921; Consolidated on 24 November 1936, with the 306th Aero Squadron
Inactivated on 23 July 1939; disbanded on 31 May 1942[34]
307th Aero Squadron
July 1918
Organized as the 307th Aero Squadron (Service) at Camp Greene, North Carolina AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Georgia) as the 307th Observation Squadron on 24 June 1921; Consolidated on 24 November 1936, with the 307th Aero Squadron
Inactivated on 27 August 1939; disbanded on 31 May 1942[34]
308th Aero Squadron
July 1918
Organized as the 308th Aero Squadron (Service) at Camp Greene, North Carolina AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Ohio) as the 308th Observation Squadron on 24 June 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated on 24 November 1936, with the 308th Aero Squadron
AEF: 11 August 1918– December 1918 Service support squadron In training in England entire time Demobilized: December 1918[35][54]
Constituted in the Organized Reserve (Ohio) as the 309th Observation Squadron on 15 October 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. Squadron commander in the late 1920s was World War I ace Major H. Weir Cook; Consolidated on 24 November 1936, with the 309th Aero Squadron
Organized as the 310th Aero Squadron (Service) at Camp Greene, North Carolina AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Michigan) as the 310th Observation Squadron on 24 June 1921; Consolidated on 24 November 1936, with the 310th Aero Squadron
Instructional flying squadron Re-designated:Squadron E, March Field, California, July 1918 Demobilized: November 1918 [35]
Constituted in the Organized Reserve (Illinois) as the 311th Observation Squadron on 15 October 1921; Consolidated on 24 November 1936, with the 311th Aero Squadron
Organized as the 312th Aero Squadron (Service) at Bolling Field, District of Columbia Demobilized: September 1919[35]
Constituted in the Organized Reserve (Alabama) as the 312th Observation Squadron on 24 June 1921; Consolidated on 24 November 1936, with the 312th Aero Squadron
Organized as the 313th Aero Squadron (Service) at Kelly Field, Texas Demobilized: August 1919[35]
Constituted in the Organized Reserve (Iowa) as the 313th Observation Squadron on 24 June 1921; 1st Lt. Charles Lindbergh was a member of the squadron from June to November 1925; Consolidated on 24 November 1936, with the 313th Aero Squadron
Inactivated on 2 October 1939; disbanded on 31 May 1942[34]
314th Aero Squadron
July 1918
Organized as the 314th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Nebraska) as the 314th Observation Squadron on 24 June 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. The squadron's equipment was stationed at Offut Field, Nebraska; Consolidated on 24 November 1936, with the 314th Aero Squadron
Inactivated on 2 October 1939; disbanded on 31 May 1942[34]
315th Aero Squadron
July 1918
Organized as the 315th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Texas) as the 315th Observation Squadron on 24 June 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated on 24 November 1936, with the 315th Aero Squadron
Organized as the 316th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (California) as the 316th Observation Squadron on 24 June 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. In January 1922 the squadron received the use of a hangar at Crissy Field and was issued five aircraft for training purposes making it the first aircraft equipped reserve squadron in the United States; Consolidated on 24 November 1936, with the 316th Aero Squadron
Inactivated on 1 September 1940; disbanded on 31 May 1942[34]
319th Aero Squadron
July 1918
Organized as the 319th Aero Squadron (Service) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Massachusetts) as the 319th Observation Squadron on 24 June 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. Stationed initially at the Framingham Airdrome. The squadron's aircraft were transferred to the Boston Airport after its opening in 1923; Consolidated on 18 November 1936, with the 319th Aero Squadron
Organized as the 320th Aero Squadron (Service) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Oklahoma) as the 320th Observation Squadron on 24 June 1921; Consolidated on 24 November 1936, with the 320th Aero Squadron
Organized as the 321st Aero Squadron (Service) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Oregon) as the 321st Observation Squadron on 24 June 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. The squadron's equipment was stationed just across the Columbia River at Pearson Field, Vancouver Barracks, Washington. 1st Lt. Oakley Kelly, Air Service Reserve, a pilot who made the first non-stop transcontinental flight in 1923, was the unit instructor 1924–28; Consolidated on 12 August 1933, with the 321st Aero Squadron
Inactivated on 30 January 1942; disbanded on 31 May 1942[34]
322d Aero Squadron
February 1918
Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: February 1919 [35][40]
Constituted in the Organized Reserve (New Hampshire) as the 322d Observation Squadron on 15 October 1921; Consolidated on 23 November 1936, with the 322d Aero Squadron
Organized as the 323d Aero Squadron (Service) at Kelly Field, Texas Demobilized: August 1919[35]
Constituted in the Organized Reserve (New York) as the 323d Observation Squadron on 24 June 1921; Consolidated on 24 November 1936, with the 323d Aero Squadron
Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919[35][40]
Constituted in the Organized Reserve (Pennsylvania) as the 324th Observation Squadron on 15 October 1921; Consolidated on 23 November 1936, with the 324th Aero Squadron
Inactivated on 23 October 1939, by relief of personnel; disbanded on 31 May 1942[34]
325th to 349th Aero Squadrons
Aero Squadron
Established
World War I
Notes/Subsequent History
325th Aero Squadron
December 1917
Organized as the 325th Aero Squadron (Service) at Kelly Field, Texas Re-designated 869th Aero Squadron (Repair), April 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Ohio) as the 325th Observation Squadron on 24 June 1921; Consolidated on 19 November 1931, with the 325th Aero Squadron
Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919 [35][40]
Constituted in the Organized Reserve (Arkansas) as the 327th Observation Squadron on 15 October 1921; Consolidated on 23 November 1936, with the 327th Aero Squadron
Inactivated on 2 October 1939, by relief of personnel; disbanded on 31 May 1942[34]
328th Aero Squadron
November 1917
Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919 [35][40]
Constituted in the Organized Reserve (Colorado) as the 328th Observation Squadron on 15 October 1921; Consolidated on 21 November 1936, with the 328th Aero Squadron
Organized as the 329th Aero Squadron (Service) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Utah) as the 329th Observation Squadron on 24 June 1921; Consolidated on 24 November 1936, with the 329th Aero Squadron
Organized as the 332d Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 670th Aero Squadron (Supply), February 1918; assigned to Camp Morrison, Virginia Demobilized: December 1918[35]
Constituted in the Organized Reserve (New York) as Air Park No. 332 on 15 October 1921; Re-designated 332d Service Squadron, 2 July 1923; Consolidated on 21 November 1936, with the 332d Aero Squadron
Organized as the 333d Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 671st Aero Squadron (Supply), February 1918; assigned to Camp Morrison, Virginia Demobilized: December 1918[35]
Constituted in the Organized Reserve (New York) as Air Park No. 333 on 15 October 1921; Re-designated 333d Service Squadron, 2 July 1923; Consolidated on 21 November 1936, with the 333d Aero Squadron
Organized as the 335th Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 673d Aero Squadron (Supply), February 1918; assigned to Camp Morrison, Virginia Demobilized: December 1918[35]
Constituted in the Organized Reserve (Pennsylvania) as Air Park No. 335 on 15 October 1921; Re-designated 335th Service Squadron, 2 July 1923; Consolidated on 21 November 1936, with the 335th Aero Squadron
Inactivated about September 1939; disbanded on 31 May 1942[34]
336th Aero Squadron
December 1917
Organized as the 336th Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 674th Aero Squadron (Supply), February 1918; assigned to Camp Morrison, Virginia Demobilized: December 1919[35]
Constituted in the Organized Reserve (Ohio) as Air Park No. 336 on 15 October 1921; Re-designated 336th Service Squadron, 2 July 1923; Consolidated on 21 November 1936, with the 336th Aero Squadron
Inactivated by March 1930; disbanded on 31 May 1942[34]
337th Aero Squadron
December 1917
Organized as the 337th Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 675th Aero Squadron (Supply), February 1918; assigned to Aviation General Supply Depot, San Antonio, Texas Demobilized: April 1919[35]
Constituted in the Organized Reserve (Illinois) as Air Park No. 337 on 15 October 1921; Re-designated 337th Service Squadron, 2 July 1923; Consolidated on 21 November 1936, with the 339th Aero Squadron
Organized as the 338th Aero Squadron (Supply) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Illinois) as Air Park No. 339 on 15 October 1921; Re-designated 338th Service Squadron, 2 July 1923; Consolidated on 24 November 1936, with the 339th Aero Squadron
AEF: 30 July 1918 – March 1919 Service support squadron Aerial Gunnery School, St. Jean-de-monts Aerodrome Demobilized: April 1919[35][54]
Constituted in the Organized Reserve (Texas) as Air Park No. 341 on 15 October 1921; Re-designated 341st Service Squadron, 2 July 1923; Consolidated on 24 November 1936, with the 341st Aero Squadron
Inactivated on 16 January 1941; disbanded on 31 May 1942[34]
Instructional flying squadron Re-designated:Squadron M (later Q), Wilbur Wright Field, Ohio, July 1918 Demobilized: November 1918 [35]
344th Aero Squadron
September 1918
Organized as the 344th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York Assigned to the Handley Page bomber project Demobilized: December 1918[35]
Constituted in the Organized Reserve (Illinois) as Air Park No. 344 on 15 October 1921; Re-designated 344th Service Squadron, 2 July 1923; Consolidated on 24 November 1936, with the 344th Aero Squadron
Organized as the 346th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York Assigned to the Handley Page bomber project Demobilized: December 1918[35]
Constituted in the Organized Reserve (New York) as Air Park No. 346 on 15 October 1921; Re-designated 346th Service Squadron, 2 July 1923; Consolidated on 24 November 1936, with the 346th Aero Squadron
Organized as the 367th Aero Squadron (Service) at Kelly Field, Texas AEF:May 1918 – December 1918 Demobilized: January 1919[35]
Constituted in the Organized Reserve (Illinois) as Air Park No. 349 on 15 October 1921; Re-designated 349th Service Squadron, Transport Group, 1 October 1933; Consolidated on 24 November 1936, with the 349th Aero Squadron
AEF: 30 July 1918 – December 1918 Service support squadron In training in England entire time Demobilized: December 1918[35][54]
Constituted in the Organized Reserve (Oklahoma) as the 350th Service Squadron on 15 October 1921; Consolidated on 24 November 1936, with the 350th Aero Squadron
AEF: 26 August 1918 – April 1919 Service support squadron 4th Aerial Artillery Observation School, Camp de Coetquidan Demobilized: April 1919[35][54]
Constituted in the Organized Reserve (Massachusetts) as the 351st Observation Squadron on 15 October 1921; Consolidated on 24 November 1936, with the 351st Aero Squadron
AEF: 26 August 1918– May 1919 Service support squadron 2d Aerial Artillery Observation School, Bordeaux Demobilized: May 1919[35][54]
Constituted in the Organized Reserve (New York) as the 353d Observation Squadron on 15 October 1921; Consolidated on 24 November 1936, with the 353d Aero Squadron
Organized as the 357th Aero Squadron (Service) at Kelly Field, Texas Assigned to Hazelhurst Field, New York, March 1918 – January 1919 Demobilized: January 1919[35]
Constituted in the Organized Reserve (Alabama) as the 357th Observation Squadron on 15 October 1921; Consolidated on 24 November 1936, with the 357th Aero Squadron
Organized as the 358th Aero Squadron (Service) at Kelly Field, Texas Assigned to Roosevelt Field, New York, March 1918 – January 1919 Demobilized: January 1919[35]
Constituted in the Organized Reserve (South Carolina) as the 358th Observation Squadron on 15 October 1921; Consolidated on 24 November 1936, with the 358th Aero Squadron
Organized as the 359th Aero Squadron (Service) at Kelly Field, Texas Assigned to several stations in the United States, March 1918 – January 1919 Demobilized: January 1919[35]
Constituted in the Organized Reserve (Ohio) as the 359th Observation Squadron on 15 October 1921; Consolidated on 24 November 1936, with the 359th Aero Squadron
AEF: June 1918 – December 1918 Re-designated: 2d Air Park 3d Pursuit Group Aircraft/Vehicle maintenance and supply unit Demobilized: December 1918[3][35]
365th Aero Squadron
January 1918
Organized as the 365th Aero Squadron (Depot) at Central Depot Headquarters, Chicago, Illinois; Re-designated 816th Aero Squadron (Depot), February 1918. Demobilized: August 1918[35]
Constituted in the Organized Reserve (Oklahoma) as the 365th Observation Squadron on 15 October 1921; Consolidated on 28 November 1936, with the 365th Aero Squadron
Inactivated on 31 October 1936; disbanded on 31 May 1942[34]
366th Aero Squadron
January 1918
Organized as the 366th Aero Squadron (Depot) at Fort Sill, Oklahoma; Re-designated 817th Aero Squadron (Depot), February 1918. Demobilized: August 1918[35]
Constituted in the Organized Reserve (Texas) as the 366th Observation Squadron on 15 October 1921; Consolidated on 28 November 1936, with the 366th Aero Squadron
Inactivated on 31 October 1936; disbanded on 31 May 1942[34]
367th Aero Squadron
January 1918
Organized as the 367th Aero Squadron (Depot) at Western Depot Headquarters, San Francisco, California; Re-designated 818th Aero Squadron (Depot), February 1918. Demobilized: August 1918[35]
Constituted in the Organized Reserve (California) as the 367th Observation Squadron on 15 October 1921; Consolidated on 28 November 1936, with the 367th Aero Squadron; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft.
Inactivated on 2 September 1937; disbanded on 31 May 1942[34]
368th Aero Squadron
January 1918
Organized as the 368th Aero Squadron (Depot) at Langley Field, Virginia Re-designated: Detachment #17, Air Service Production Squadron, August 1918 Demobilized: January 1919[35]
369th Aero Squadron
31 December 1917
AEF: 5 March 1918 – June 1918 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: June 1919[35][54]
Constituted in the Organized Reserve (New York) as the 369th Observation Squadron on 15 October 1921; Re-designated 374th Service Squadron, 25 January 1923; Consolidated on 27 November 1936, with 27 November 1936
AEF: 6 March 1918 – June 1919 Aerial Observation Squadron (Training) Second Corps Observation Aeronautical School, Chatillion-sur-Seine Aerodrome Demobilized June 1919 [35][54]
372d Aero Squadron
17 January 1918
AEF: 18 March 1918 – May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919[35][54]
373d Aero Squadron
19 January 1918
AEF: 18 March 1918– May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919[35][54]
Constituted in the Organized Reserve (California) as Air Park No. 373 on 15 October 1921; Re-designated 373d Service Squadron, 25 January 1923; Consolidated on 27 November 1936, with the 373d Aero Squadron
Inactivated on 2 March 1937; disbanded on 31 May 1942[34]
374th Aero Squadron
28 December 1917
AEF: 18 March 1918– May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919 [35][54]
Constituted in the Organized Reserve (California) as Air Park No. 374 on 15 October 1921; Re-designated 374th Service Squadron, 25 January 1923; Consolidated on 27 November 1936, with the 374th Aero Squadron
Inactivated on 1 September 1928; disbanded on 31 May 1942[34]
375th Aero Squadron
20 January 1918
AEF: 18 March 1918– May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919 [35][54]
376th Aero Squadron
1 January 1918
AEF: 18 March 1918– May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919 [35][54]
377th Aero Squadron
January 1918
Organized as the 377th Aero Squadron (Service) at Rich Field, Waco, Texas AEF: March 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Indiana) as Air Park No. 305 on 15 October 1921; Re-designated as the 377th Service Squadron on 25 January 1923; Consolidated on 27 November 1936, with the 377th Aero Squadron
Inactivated on 1 December 1929; disbanded on 31 May 1942[34]
378th Aero Squadron
January 1918
Organized as the 378th Aero Squadron (Service) at Rich Field, Waco, Texas AEF: March 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Illinois) as Air Park No. 306 on 15 October 1921; Re-designated as the 378th Service Squadron on 25 January 1923; Consolidated on 27 November 1936, with the 378th Aero Squadron Inactivated by 7 December 1941; disbanded on 31 May 1942[34]
Instructional flying squadron Re-designated:Squadron E, Benbrook Field, Texas, July 1918 Demobilized: November 1918 [35]
Constituted in the Organized Reserve (Nebraska) as Air Park No. 307 on 15 October 1921; Re-designated 379th Service Squadron, Attack Group, 1 October 1933; Consolidated on 28 November 1936, with the 379th Aero Squadron
Instructional flying squadron Re-designated:Squadron B, Selfridge Field, Michigan, July 1918 Demobilized: November 1918[35]
Constituted in the Organized Reserve (Texas) as Air Park No. 308 on 15 October 1921; Re-designated 380th Service Squadron, Observation Group, 1 October 1933; Consolidated on 28 November 1936, with the 380th Aero Squadron
Inactivated on 31 October 1936; disbanded on 31 May 1942[34]
400th to 449th Aero Squadrons
Aero Squadron
Established
World War I
Notes/Subsequent History
400th Aero Squadron
23 May 1917
Formed as 29th Aero Squadron (Prov) AEF: 28 July 1917 – July 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: July 1919
Notable as the first American Air Service Squadron to arrive in France[35][56]
Constituted in the Organized Reserve (New York) as the 400th Attack Squadron on 15 October 1921; Consolidated on 27 November 1936, with the 400th Aero Squadron
Organized as the 401st Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 15th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (New York) as the 401st Attack Squadron on 15 October 1921; Consolidated on 27 November 1936, with the 401st Aero Squadron
Inactivated on 18 September 1930; disbanded on 31 May 1942[34]
402d Aero Squadron
November 1917
Organized as the 402d Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 16th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (New York) as the 402d Attack Squadron on 15 October 1921; Consolidated on 27 November 1936, with the 402d Aero Squadron
Inactivated on 5 December 1929; disbanded on 31 May 1942[34]
403d Aero Squadron
November 1917
Organized as the 403rd Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 17th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) 15 October 1921; Consolidated on 23 November 1936, with 403d Airdrome Company
Organized as the 404th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 18th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) as the 404th Pursuit Squadron on 15 October 1921; Consolidated on 30 November 1936, with the 404th Aero Squadron
Inactivated by June 1940; disbanded on 31 May 1942[34]
405th Aero Squadron
November 1917
Organized as the 405th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 19th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) as the 405th Pursuit Squadron on 15 October 1921; Consolidated on 30 November 1936, with the 405th Aero Squadron
Organized as the 406th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 20th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) as the 406th Pursuit Squadron on 15 October 1921; Reorganized and re-designated 406th Attack Squadron on 1 October 1933; Consolidated on 30 November 1936, with the 406th Aero Squadron
Inactivated by June 1940; disbanded on 31 May 1942[34]
407th Aero Squadron
November 1917
Organized as the 407th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 1st Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) as the 407th Attack Squadron on 15 October 1921; Consolidated on 5 December 1936, with the 407th Aero Squadron
Inactivated on 25 July 1929; disbanded on 31 May 1942[34]
408th Aero Squadron
November 1917
Organized as the 408th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 2d Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) as the 408th Attack Squadron on 15 October 1921; Consolidated on 5 December 1936, with the 408th Aero Squadron
Organized as the 409th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 3d Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) as the 409th Attack Squadron on 15 October 1921; Consolidated on 30 November 1936, with the 409th Aero Squadron
Organized as the 412th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 4th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) as the 410th Attack Squadron on 15 October 1921; Consolidated on 30 November 1936, with the 410th Aero Squadron
Inactivated on 23 July 1929; disbanded on 31 May 1942[34]
411th Aero Squadron
November 1917
Re-designated 5th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (New York) as the 411th Airdrome Company 15 October 1921; Consolidated on 23 November 1936, with 411th Aero Squadron
Organized as the 412th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 6th Spruce Squadron, Aberdeen, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Mississippi) as the 412th Pursuit Squadron on 15 October 1921; Consolidated on 28 November 1936, with the 412th Aero Squadron
Inactivated on 19 September 1929; disbanded on 31 May 1942[34]
413th Aero Squadron
December 1917
Organized as 413th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 42d Spruce Squadron and transferred to Aberdeen, Washington, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Pennsylvania) 15 October 1921, as the 413th Airdrome Company; Consolidated on 23 November 1936, with 413th Aero Squadron
Organized as the 414th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 102d Spruce Squadron, Powers, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Ohio) as the 414th Pursuit Squadron on 15 October 1921; Consolidated on 28 November 1936, with the 414th Aero Squadron
Inactivated about June 1937; disbanded on 31 May 1942[34]
415th Aero Squadron
December 1917
Organized as 415th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 32d Spruce Squadron and transferred to Twin, Washington, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Ohio) 15 October 1921, as the 415th Airdrome Company; Consolidated on 23 November 1936, with 415th Aero Squadron
Organized as 416th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 33d Spruce Squadron and transferred to Stillwater, Washington, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Ohio) 15 October 1921, as the 416th Airdrome Company; Consolidated on 23 November 1936, with 416th Aero Squadron
Organized as 417th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 34th Spruce Squadron and transferred to Pysht, Washington, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Wisconsin) 15 October 1921, as the 417th Airdrome Company; Consolidated on 23 November 1936, with 417th Aero Squadron
Organized as 418th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 35th Spruce Squadron and transferred to Arlington, Washington, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Arkansas) 15 October 1921, as the 418th Airdrome Company; Consolidated on 23 November 1936, with 418th Aero Squadron
Organized as 419th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 43d Spruce Squadron and transferred to Lindburg, Washington, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (New York) 15 October 1921, as the 419th Airdrome Company; Consolidated on 23 November 1936, with 419th Aero Squadron
Organized as 420th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 44th Spruce Squadron and transferred to Hoquiam, Washington, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Kentucky) 15 October 1921, as the 420th Airdrome Company; Consolidated on 23 November 1936, with 420th Aero Squadron
Organized as the 421st Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 45th Spruce Squadron, Carlisle, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Illinois) as the 421st Pursuit Squadron on 15 October 1921; Consolidated on 2 December 1936, with the 421st Aero Squadron
Organized as the 422d Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 36th Spruce Squadron, Blyn, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Wisconsin) as the 422d Pursuit Squadron on 15 October 1921; Consolidated on 2 December 1936, with the 422d Aero Squadron
Organized as the 423d Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 46th Spruce Squadron, Bay City, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Illinois) as the 423d Pursuit Squadron on 15 October 1921; Reorganized and re-designated 423d Attack Squadron on 1 October 1933; Consolidated on 2 December 1936, with the 423d Aero Squadron
Organized as 424th Aero Squadron at Vancouver Barracks, Washington Re-designated 66th Spruce Squadron, July 1918 transferred to Blind Slough, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
425th Aero Squadron
December 1917
Organized as the 425th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 29th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Illinois) as the 425th Attack Squadron on 15 October 1921; Consolidated on 3 December 1936, with the 425th Aero Squadron
Organized as the 426th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 30th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Illinois) as the 426th Attack Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 426th Aero Squadron
Organized as the 427th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 47th Spruce Squadron, Raymond, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Illinois) as the 426th Attack Squadron on 15 October 1921; Consolidated on 27 November 1936, with the 426th Aero Squadron
Inactivated on 28 July 1936; disbanded on 31 May 1942[34]
428th Aero Squadron
January 1918
Organized as the 428th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 67th Spruce Squadron, Seaside, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Michigan) as the 428th Pursuit Squadron on 15 October 1921; Consolidated on 16 November 1936, with the 428th Aero Squadron
Organized as 429th Aero Squadron at Vancouver Barracks, Washington Re-designated 31st Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
430th Aero Squadron
January 1918
Organized as the 430th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 37th Spruce Squadron, Snoqualmie Falla, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Missouri) as the 430th Pursuit Squadron on 15 October 1921; This squadron was one of the few in the Organized Reserve that possessed facilities, equipment, and aircraft. Squadron personnel were largely pilots and ground support personnel employed by Trans-World Airways (TWA) at the Kansas City Municipal Airport. Participated in a "Fly By" in June 1932 for the Honorable Patrick J. Hurley, Secretary of War, at the grand opening of the Kansas City-St. Louis Waterway; Consolidated on 25 November 1936, with the 430th Aero Squadron
Organized as 433d Aero Squadron at Vancouver Barracks, Washington Re-designated 68th Spruce Squadron, July 1918 transferred to Olney, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
434th Aero Squadron
January 1918
Organized as 434th Aero Squadron at Vancouver Barracks, Washington Re-designated 69th Spruce Squadron, July 1918 transferred to Clatsop, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
435th Aero Squadron
January 1918
Organized as the 435th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 50th Spruce Squadron, Hoquiam, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Texas) as the 435th Pursuit Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 435th Aero Squadron
Inactivated on 31 October 1936; disbanded on 31 May 1942[34]
436th Aero Squadron
January 1918
Organized as the 436th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 51st Spruce Squadron, Coomopo1ils, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Colorado) as the 436th Pursuit Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 436th Aero Squadron
Inactivated on 31 October 1936; disbanded on 31 May 1942[34]
437th Aero Squadron
January 1918
Organized as 437th Aero Squadron at Vancouver Barracks, Washington Re-designated 79th Spruce Squadron, July 1918 transferred to Waldport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
438th Aero Squadron
January 1918
Organized as 438th Aero Squadron at Vancouver Barracks, Washington Re-designated 52nd Spruce Squadron, July 1918 transferred to Raymond, Washington; Assigned to Spruce Production Division working for Siler Logging Co.; Returned to Vancouver Barracks November 1918; Demobilized: January 1919[35]
439th Aero Squadron
January 1918
Organized as 439th Aero Squadron at Vancouver Barracks, Washington Re-designated 7th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
440th Aero Squadron
January 1918
Organized as 440th Aero Squadron at Vancouver Barracks, Washington Re-designated 8th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
441st Aero Squadron
January 1918
Organized as 441st Aero Squadron at Vancouver Barracks, Washington Re-designated 9th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
442d Aero Squadron
January 1918
Organized as 442d Aero Squadron at Vancouver Barracks, Washington Re-designated 10th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
443d Aero Squadron
February 1918
Organized as the 447th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 11th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Massachusetts) as the 443d Pursuit Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 443d Aero Squadron
Inactivated on 5 June 1936; disbanded on 31 May 1942[34]
444th Aero Squadron
January 1918
Organized as 444th Aero Squadron at Vancouver Barracks, Washington Re-designated 12th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
445th Aero Squadron
February 1918
Organized as 445th Aero Squadron at Camp Darrington, Washington Re-designated 38th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
446th Aero Squadron
February 1918
Organized as 446th Aero Squadron at Vancouver Barracks, Washington Re-designated 53d Spruce Squadron, July 1918 transferred to Enumclaw, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
447th Aero Squadron
February 1918
Organized as the 447th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 70th Spruce Squadron, Miami, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (New York) as the 447th Pursuit Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 447th Aero Squadron
Inactivated in June 1929; disbanded on 31 May 1942[34]
448th Aero Squadron
February 1918
Organized as the 448th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 54th Spruce Squadron, Raymond, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (New York) as the 448th Pursuit Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 448th Aero Squadron
Organized as the 449th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 55th Spruce Squadron, South Bend, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (New York) as the 449th Pursuit Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 449th Aero Squadron
Organized as 451st Aero Squadron at Vancouver Barracks, Washington Re-designated 56th Spruce Squadron, July 1918 transferred to Nemah, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
452d Aero Squadron
February 1918
Organized as 452d Aero Squadron at Vancouver Barracks, Washington Re-designated 71st Spruce Squadron, July 1918 transferred to Seaside, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
453d Aero Squadron
February 1918
Organized as 453d Aero Squadron at Vancouver Barracks, Washington Re-designated 80th Spruce Squadron, July 1918 transferred to Toledo, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
454th Aero Squadron
February 1918
Organized as 454th Aero Squadron at Vancouver Barracks, Washington Re-designated 57th Spruce Squadron, July 1918 transferred to Raymond, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
455th Aero Squadron
February 1918
Organized as the 455th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 81st Spruce Squadron, Waldport, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (North Carolina) as the 455th Pursuit Squadron on 15 October 1921; Reorganized and re-designated as the 455th Bombardment Squadron on 18 August 1933; Consolidated on 25 November 1936, with the 455th Aero Squadron
Inactivated on 19 September 1929; disbanded on 31 May 1942[34]
456th Aero Squadron
February 1918
Organized as the 456th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 72d Spruce Squadron, Clatsop, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Tennessee) as the 456th Pursuit Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 456th Aero Squadron
Organized as the 457th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 73d Spruce Squadron, Clatsop, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Georgia) as the 457th Pursuit Squadron on 15 October 1921; Consolidated on 25 November 1936, with the 457th Aero Squadron
Organized as the 458th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 74th Spruce Squadron, Clatsop, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Georgia) as the 458th Pursuit Squadron on 15 October 1921; Reorganized and re-designated as the 458th Bombardment Squadron on 18 August 1933; Consolidated on 3 December 1936, with the 458th Aero Squadron
Organized as the 459th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 58th Spruce Squadron, Aberdeen, Washington, July 1918 Transferred to Vancouver Barracks, November 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Constituted in the Organized Reserve (Tennessee) as the 459th Observation Squadron on 15 October 1921; Consolidated on 3 December 1936, with the 459th Aero Squadron
Inactivated on 19 September 1929; disbanded on 31 May 1942[34]
460th Aero Squadron
December 1917
Organized as 460th Aero Squadron at Portland, Oregon Re-designated 105th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
Formed as 48th Aero Squadron (Prov) AEF: 29 October 1917 – July 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: August 1919[35][56]
Formed as 51st Aero Squadron (Prov) AEF: 30 October 1917 – July 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: July 1919[35][56]
Formed as 52d Aero Squadron (Prov) AEF: 29 October 1917 – July 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: July 1919[35][56]
Constituted in the United States Army Air Corps as Air Park No. 4, and assigned to the 2d Bombardment Group, Kelly Field, Texas on 26 June 1922; Concurrently organized with personnel and equipment from the 464th Aero Squadron; Re-designated as the 59th Service Squadron on 25 January 1923
Formed as 53d Aero Squadron (Prov) AEF: 29 October 1917 – March 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: March 1919[35][56]
Formed as 54th Aero Squadron (Prov) AEF: 29 October 1917 – January 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: February 1919[35][56]
Formed as 55th Aero Squadron (Prov) AEF: 29 October 1917 – March 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: March 1919[35][56]
Formed as 56th Aero Squadron (Prov) AEF: 29 October 1917 – June 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Air Service Production Center No. 2. Romorantin Aerodrome Air Service Acceptance Park No. 1 Orly Field, Paris Demobilized: July 1919[35][56]
Constituted in the Organized Reserve (Illinois) as the 468th Attack Squadron on 15 October 1921; Consolidated on 3 December 1936, with the 469th Aero Squadron
Formed as 57th Aero Squadron (Prov) AEF: 29 October 1917 – March 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome 2d Aviation Instruction Center Tours Aerodrome Demobilized: March 1919[35][56]
Constituted in the Organized Reserve (Illinois) as the 469th Attack Squadron on 15 October 1921; Consolidated on 3 December 1936, with the 469th Aero Squadron
Formed as 58th Aero Squadron (Prov) AEF: 5 February 1918 – December 1918 Construction Squadron Served at RAF Stations in England Demobilized: December 1918[35][56]
Constituted in the Organized Reserve (Illinois) as the 470th Attack Squadron on 15 October 1921; Consolidated on 3 December 1936, with the 47th Aero Squadron
Formed as 62d Aero Squadron (Prov) AEF: 24 March 1918 – January 1919 Construction Squadron Constructed airfields for First Army Demobilized: January 1919[35][56]
475th Aero Squadron
August 1917
Organized as 63d Aero Squadron (Construction), Kelly Field, Texas Re-designated 475th Aero Squadron, February 1918 AEF: February 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (California) as the 475th Attack Squadron on 15 October 1921; Consolidated on 16 November 1936, with the 475th Aero Squadron
Inactivated on 31 October 1936; disbanded on 31 May 1942[34]
476th Aero Squadron
August 1917
Organized as 64th Aero Squadron (Construction), Kelly Field, Texas Re-designated 476th Aero Squadron, February 1918 AEF: February 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (California) as the 476th Pursuit Squadron on 15 October 1921; Consolidated on 24 January 1931, with the 476th Aero Squadron
Formed as 65th Aero Squadron (Prov) AEF: 21 March 1918 – January 1919 Construction Squadron Constructed airfields for First Army Demobilized: January 1919[35][56]
Constituted in the Organized Reserve (California) as the 477th Pursuit Squadron on 15 October 1921; >Consolidated on 24 January 1931, with the 477th Aero Squadron
Organized as 67th Aero Squadron (Construction), Kelly Field, Texas Re-designated 479th Aero Squadron, February 1918 AEF: February 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (California) as the 479th Pursuit Squadron on 15 October 1921; Relocated on 28 January 1930, to the Los Angeles Municipal Airport, Los Angeles. There the squadron became one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft.; Consolidated on 24 January 1931, with the 479th Aero Squadron
Inactivated on 2 September 1937; disbanded on 31 May 1942[34]
Formed as 68th Aero Squadron (Prov) AEF: 21 March 1918 – February 1919 Construction Squadron Construction Air Service Production Center #2, Romorantin Demobilized: February 1919[35][56]
Formed as 69th Aero Squadron (Prov) AEF: 21 March 1918 – February 1919 Construction Squadron Air Service Production Center #2, Romorantin Demobilized: February 1919[35][56]
Constituted in the Organized Reserve (Pennsylvania) as the 481st Bombardment Squadron on 31 March 1924; Consolidated on 3 December 1936, with the 483d Aero Squadron
Inactivated by June 1940; disbanded on 31 May 1942[34]
Formed as 70th Aero Squadron AEF: 26 March 1918 – 8 February 1919 Construction Squadron Airfield construction from 28 March 1918, to First Army 23 Aug, then to Second Army 28 Oct Demobilized: 8 February 1919[10][35][56]
Constituted in the Organized Reserve (Maryland) as the 482d Bombardment Squadron on 31 March 1924; Consolidated on 2 December 1936, with the 482d Aero Squadron; Inactivated on 23 July 1929; disbanded on 31 May 1942
Reconstituted and consolidated (21 April 1944) with 482d Bombardment Squadron (Very Heavy) which was constituted on 28 February 1944; Inactivated on 30 June 1946[34][10]
Formed as 71st Aero Squadron AEF: 21 March 1918 – February 1919 Construction Squadron Air Service Production Center #2, Romorantin Demobilized: February 1919[35][56]
Constituted in the Organized Reserve (Pennsylvania) as the 483d Bombardment Squadron on 31 March 1924; Consolidated on 2 December 1936, with the 483d Aero Squadron
Inactivated on 23 July 1929; disbanded on 31 May 1942[34]
Formed as 72d Aero Squadron AEF: 21 March 1918 – January 1919 Construction Squadron Constructed airfields for AEF, First Army from 23 Aug and Second Army from 28 Oct Demobilized: February 1919[35][56]
Constituted in the Organized Reserve (Pennsylvania) as the 484th Bombardment Squadron on 31 March 1924; Consolidated on 2 December 1936, with the 484th Aero Squadron; Inactivated on 12 May 1937, by relief of personnel; disbanded on 31 May 1942
Reconstituted and consolidated (21 April 1944) with 484th Bombardment Squadron (Very Heavy) which was constituted on 28 February 1944; Inactivated on 30 June 1946[34][10]
Formed as 73d Aero Squadron AEF: 21 March 1918 – May 1919 Construction Squadron Construct. Air Service Production Center #2, Romorantin, France 24 May 1918 Construction Air Service Spare Depot, Chatenay-sur-Seine, France 10 September 1918 Demobilized: May 1919[35][56]
Constituted in the Organized Reserve (Ohio) as the 485th Bombardment Squadron on 31 March 1924; Consolidated on 5 December 1936, with the 485th Aero Squadron; Inactivated by June 1937; disbanded on 31 May 1942
Reconstituted and consolidated 28 February 1944, with the 485th Bombardment Squadron (Very Heavy); inactivated on 10 June 1946[34]
Formed as 74th Aero Squadron AEF: 21 March 1918 – June 1919 Construction Squadron Air Service Production Center #2, Romorantin Demobilized: June 1919[35][56]
Constituted in the Organized Reserve (Indiana) as the 486th Bombardment Squadron on 31 March 1924; Consolidated on 5 December 1936, with the 486th Aero Squadron
Inactivated by March 1930; disbanded on 31 May 1942[34]
Formed as 75th Aero Squadron AEF: 25 December 1917 – May 1919 Construction Squadron Air Service Production Center #2, Romorantin 18 January 1918 2d Air Depot, Latrecey[57] Demobilized: May 1919[35][56]
Constituted in the Organized Reserve (Kentucky) as the 487th Bombardment Squadron on 31 March 1924; Consolidated on 5 December 1936, with the 487th Aero Squadron
Inactivated by March 1930; disbanded on 31 May 1942[34]
488th Aero Squadron
14 August 1917
Formed as 76th Aero Squadron AEF: 25 December 1917 – May 1919 Construction Squadron Air Service Production Center No. 2, Romorantin Aerodrome Demobilized: May 1919[35][56]
Formed as 77th Aero Squadron AEF: 1 January 1918 – 8 February 1919 Construction Squadron Air Service Production Center No. 2, Romorantin Aerodrome Demobilized: 6 March 1919
Constituted in the Organized Reserve (Washington) as the 489th Bombardment Squadron on 31 March 1924. The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated in June 1932 with the 489th Aero Squadron; Inactivated on 30 January 1942, by relief of personnel
Consolidated (1958) with 489th Bombardment Squadron (Medium) which was constituted on 10 August 1942; Discontinued, and inactivated on 1 January 1962[34][10]
Formed as 78th Aero Squadron AEF: 7 December 1917– February 1919 Construction Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: February 1919[35][56]
Constituted in the Organized Reserve (Washington) as the 490th Bombardment Squadron on 31 March 1924; Consolidated on 7 December 1936, with the 490th Aero Squadron
Inactivated on 2 March 1937; disbanded on 31 May 1942[34]
491st Aero Squadron
14 August 1917
Formed as 79th Aero Squadron AEF: 8 December 1917 – January 1919 Construction Squadron 7th Aviation Instruction Center Clermont-Ferrand Aerodrome Demobilized: January 1919[35][56]
Constituted in the Organized Reserve (Washington) as the 491st Bombardment Squadron on 31 March 1924; Consolidated on 5 December 1936, with the 491st Aero Squadron; Inactivated on 2 March 1937; disbanded on 31 May 1942
Consolidated (1958) with 491st Bombardment Squadron (Medium) which was constituted on 14 August 1942; Discontinued, and inactivated, on 25 June 1961[34][10]
492d Aero Squadron
15 August 1917
Formed as 80th Aero Squadron AEF: 8 December 1917– Construction Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: January 1919[35][56]
Constituted in the Organized Reserve (Washington) as the 492d Bombardment Squadron on 31 March 1924; Consolidated on 5 December 1936, with the 492d Aero Squadron; Inactivated on 2 March 1937; disbanded on 31 May 1942
Consolidated (1960) with 492d Bombardment Squadron (Heavy) which was constituted on 19 September 1942; Discontinued, and inactivated on 1 February 1963[34][10]
493d Aero Squadron
10 July 1917
Formed as 45th Aero Squadron AEF: 8 December 1917 – January 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: January 1919[35][56]
Constituted in the Organized Reserve (Wisconsin) as the 493d Bombardment Squadron on 31 March 1924; Consolidated on 7 December 1936, with the 493d Aero Squadron
Formed as 82d Aero Squadron AEF: 8 December 1917 – May 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: May 1919[35][56]
Constituted in the Organized Reserve (Wisconsin) as the 494th Bombardment Squadron on 31 March 1924; Consolidated on 7 December 1936, with the 494th Aero Squadron
Organized as 83d Aero Squadron (Construction) at Kelly Field, Texas Re-designated February 1918 at Camp Morrison, Virginia AEF: March 1918 – January 1919 Demobilized in January 1919.[35]
Constituted in the Organized Reserve (Wisconsin) as the 495th Bombardment Squadron on 31 March 1924; Consolidated on 7 December 1936, with the 495th Aero Squadron
Inactivated on 1 December 1929; disbanded on 31 May 1942[34]
496th Aero Squadron
11 October 1917
Formed as 200th Aero Squadron AEF: 20 November 1917 – April 1919 Construction Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: April 1919[35][56]
497th Aero Squadron
11 October 1917
Formed as 201st Aero Squadron AEF: 20 November 1917 – April 199 Construction Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: April 1919[35][56]
498th Aero Squadron
15 December 1917
Formed as 202d Aero Squadron AEF: 25 September 1918– January 1919 Construction Squadron Constructed airfields for First Army Demobilized: January 1919[35][56]
499th Aero Squadron
19 December 1917
Formed as 203d Aero Squadron AEF: 4 November 1918 – March 1919 Construction Squadron Air Service Replacement Concentration Center St. Maixent Replacement Barracks Demobilized: March 1919[35][56]
500th to 799th Aero Squadrons
Aero Squadron
Established
World War I
Notes/Subsequent History
500th Aero Squadron
19 December 1917
Formed as 204th Aero Squadron AEF: 9 November 1918 – March 1919 Construction Squadron Air Service Replacement Concentration Center St. Maixent Replacement Barracks Demobilized: March 1919[35][56]
501st Aero Squadron
December 1917
Organized as 205th Aero Squadron (Construction) at Camp Morrison, Virginia Re-designated February 1918; Transferred to several locations within Continental United States, March 1918 – January 1919. Demobilized in January 1919.[35]
Constituted in the Organized Reserve (Pennsylvania) as the 501st Pursuit Squadron on 15 October 1921; Reorganized and re-designated as the 501st Transport Squadron on 1 October 1933; Consolidated on 7 December 1936, with the 501st Aero Squadron
Inactivated by 7 December 1941; disbanded on 31 May 1942[34]
502d Aero Squadron
December 1917
Organized as 206th Aero Squadron (Construction) at Camp Morrison, Virginia Re-designated February 1918; Transferred to several locations within Continental United States, February 1918 – January 1919. Demobilized in January 1919.[35]
Constituted in the Organized Reserve (Pennsylvania) as the 502d Pursuit Squadron on 15 October 1921; Reorganized and re-designated as the 502d Transport Squadron on 1 October 1933; Consolidated on 7 December 1936, with the 502d Aero Squadron
Inactivated on 23 July 1939; disbanded on 31 May 1942[34]
503d Aero Squadron
December 1917
Organized as 207th Aero Squadron (Construction) at Camp Morrison, Virginia Re-designated February 1918 at Dorr Field, Florida. Transferred to Aviation General Supply Depot, Middleton, Pennsylvania, September 1918 Demobilized in March 1919.[35]
Constituted in the Organized Reserve (Pennsylvania) as the 503d Pursuit Squadron on 15 October 1921; Reorganized and re-designated as the 503d Transport Squadron on 1 October 1933; Consolidated on 7 December 1936, with the 503d Aero Squadron
Organized as 208th Aero Squadron (Construction) at Camp Morrison, Virginia Re-designated February 1918. Transferred to several locations within Continental United States, February 1918 – January 1919. Demobilized in January 1919.[35]
505th Aero Squadron
December 1917
Organized as 209th Aero Squadron (Construction) at Kelly Field, Texas Re-designated February 1918 at Rich Field, Texas. Transferred to several locations within Continental United States, May 1918 – January 1919. Demobilized in January 1919.[35]
Constituted in the Organized Reserve (Texas) as the 505th Pursuit Squadron on 15 October 1921;Reorganized and re-designated as the 505th Transport Squadron on 1 October 1933; Consolidated on 30 November 1936, with the 505th Aero Squadron
Inactivated on 31 October 1936; disbanded on 31 May 1942[34]
506th Aero Squadron
July 1918
Organized as a construction squadron, Brooks Field, Texas Demobilized, November 1918[35]
507th Aero Squadron
February 1918
Organized as a construction squadron, Kelly Field, Texas Transferred to Wilbur Wright Field, Ohio, July 1918. Demobilized, November 1918[35]
508th Aero Squadron
February 1918
Organized as a construction squadron, Kelly Field, Texas Transferred to Gerstner Field, Louisiana, August 1918. Demobilized, November 1918[35]
601st Aero Squadron
January 1918
Organized as 601st Aero Squadron at Vancouver Barracks, Washington Re-designated 13th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
603d Aero Squadron
February 1918
Organized as 603d Aero Squadron at Vancouver Barracks, Washington Re-designated 14th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
607th Aero Squadron
January 1918
Organized as a Supply Squadron, Kelly Field, Texas Transferred January 1918 to Fort Wayne, Michigan Demobilized: February 1919[35]
Constituted in the Organized Reserve (Indiana) 1 October 1933, as the 607th Supply Squadron; Consolidated on 23 November 1936, with 607th Aero Squadron
Organized as a Supply Squadron, Kelly Field, Texas Transferred June 1918 to Aviation General Supply Depot, Middletown, Pennsylvania Demobilized: March 1919[35]
Constituted in the Organized Reserve (Georgia) 1 October 1933, as the 610th Supply Squadron; Consolidated on 8 December 1936, with 610th Aero Squadron
Organized as a Supply Squadron, Kelly Field, Texas Transferred July 1918 to Wilbur Wright Field, Ohio Demobilized: March 1919[35]
Constituted in the Organized Reserve (New York) 1 October 1933, as the 612th Supply Squadron; Consolidated on 30 November 1937, with 612th Aero Squadron
Organized as a Supply Squadron, Kelly Field, Texas Transferred August 1918 to Garden City, New York Demobilized: January 1919[35]
Constituted in the Organized Reserve (New York) 1 October 1933, as the 613th Supply Squadron; Consolidated on 3 December 1936, with 613th Aero Squadron
Supply Squadron, Formed as 113th Aero Squadron, Re-designated February 1918. Assigned to Aviation General Supply Depot, Middletown, Pennsylvania, September 1917. Demobilized March 1919[35]
Depot was established in early 1917 as a general supply and ordnance depot. Also known as "Middletown Ordnance Depot"[47]
635th Aero Squadron
August 1917
Supply Squadron, Formed as 114th Aero Squadron, Re-designated February 1918. Assigned to Aviation General Supply Depot, Richmond, Virginia, September 1917. Demobilized July 1919[35]
Depot was established in early 1917 as a general supply depot. Located on the site of the Virginia-Caroline Chemical Company[47]
Formed as 115th Aero Squadron Re-designated: 636th Aero Squadron 1 July 1918 AEF: 27 December 1917 – 11 May 1919 Supply Squadron Demobilized: 8 April 1919[58]
Constituted in the National Guard in 1921 as the 115th Squadron (Observation) and allotted to the state of California; Organized in April 1924 at Hollywood. Relocated on 16 June 1924, to Clover Field, Santa Monica, California. Concurrently federally recognized at Clover Field
Formed as 116th Aero Squadron Re-designated: 6379th Aero Squadron 1 July 1918 AEF: 27 December 1917 – 25 March 1919 Advance Section, Services of Supply (SOS) Supply Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: 20 May 1919 [39]
Constituted in the National Guard in 1921 as the 116th Squadron (Observation), and allotted to the state of Washington; Organized on 24 July 1924, and federally recognized on 6 August 1924, at Felts Field, Parkwater, Washington; Consolidated on 20 October 1936, with the 116th Aero Squadron
Formed at 117th Aero Squadron AEF: 31 December 1917 – July 1919 Pursuit Squadron Assigned to 5th Pursuit Group (Did not see combat) Demobilized 31 July 1919 [35][58]
Formed as 118th Aero Squadron Re-designated: 639th Aero Squadron 1 July 1918 AEF: 3 January 1918 – 25 May 1919 Supply Squadron Demobilized: 6 June 1919
Constituted in the National Guard in 1921 as the 118th Squadron (Observation) and allotted to the state of Connecticut; Organized on 27 July 1923, and federally recognized on 1 November 1923, at Brainard Field, Hartford, Connecticut.
Formed as 121st Aero Squadron AEF: 24 January 1918 – April 1919 Supply Squadron 3d Air Instructional Center Issoudun Aerodrome Demobilized: April 1919[35][58]
641st Aero Squadron
2 September 1917
Formed as 122d Aero Squadron AEF: 24 January 1918 – May 1919 Supply Squadron 3d Air Instructional Center Issoudun Aerodrome Demobilized: June 1919[35][58]
642d Aero Squadron
2 September 1917
Formed as 123d Aero Squadron AEF: 24 January 1918 – May 1919 Supply Squadron 3d Air Instructional Center Issoudun Aerodrome Demobilized: June 1919[35][58]
643d Aero Squadron
3 September 1917
Formed as 124th Aero Squadron AEF: 24 January 1918 – May 1919 Advance Section, Services of Supply (SOS) Supply Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: June 1919[35][39][58]
644th Aero Squadron
2 September 1917
Formed as 125th Aero Squadron AEF: 24 January 1918 – May 1919 Supply Squadron 3d Air Instructional Center Issoudun Aerodrome Demobilized: June 1919[35][58]
645th Aero Squadron
3 September 1917
Formed as 126th Aero Squadron AEF: 28 January 1918 – June 1919 Advance Section, Services of Supply (SOS) Supply Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919[35][39][58]
646th Aero Squadron
3 September 1917
Formed as 127th Aero Squadron AEF: 24 January 1918 – April 1919 Supply Squadron Air Service Replacement Concentration Center St. Maixent Replacement Barracks Demobilized: April 1919[35][58]
Formed as 130th Aero Squadron AEF: 12 April 1918 – June 1919 Supply Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: July 1919[35][58]
650th Aero Squadron
5 September 1917
Formed as 131st Aero Squadron AEF: 13 April 1918 – May 1919 Supply Squadron Air Service Acceptance Park No. 1 Orly Airport, Paris Demobilized: May 1919[35][58]
652d Aero Squadron
September 1917
Formed as the 133d Aero Squadron Supply Squadron, Kelly Field, Texas Re-designated 652d Aero Squadron (Supply) January 1918 Transferred to Garden City, New York January 1918 Transferred to AEF: Training in England entire time Demobilized: December 1918[35][58]
Constituted in the Organized Reserve (New York) 1 October 1933, as the 652d Repair Squadron; Consolidated on 3 December 1936, with 652d Aero Squadron
Formed as the 134th Aero Squadron Supply Squadron, Kelly Field, Texas Re-designated 653d Aero Squadron (Supply) January 1918 Transferred to Camp Morrison, Virginia, January 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (New York) 1 October 1933, as the 653d Repair Squadron; Consolidated on 3 December 1936, with 653d Aero Squadron
Formed as the 146th Aero Squadron Supply Squadron, Garden City, New York Re-designated 654th Aero Squadron (Supply) January 1918 Demobilized: January 1919[35]
Constituted in the Organized Reserve 1 October 1933, as the 654th Repair Squadron; Consolidated on 4 December 1936, with 654th Aero Squadron
Formed as 220th Aero Squadron AEF: 30 January 1918 – May 1919 Supply Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: May 1919[35][58]
Constituted in the Organized Reserve 1 October 1933, as the 655th Repair Squadron; Consolidated on 4 December 1936, with 655th Aero Squadron
Formed as 230th Aero Squadron AEF: 28 January 1918 – May 1919 Supply Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: May 1919[35][58]
Constituted in the Organized Reserve (Nebraska) 1 October 1933, as the 656th Repair Squadron; Consolidated on 4 December 1936, with 656th Aero Squadron
Formed as 231st Aero Squadron AEF: 24 February 1918 – March 1919 Supply Squadron Stationed at various RAF stations in England Demobilized: March 1919[35][58]
Constituted in the Organized Reserve (Indiana) 1 October 1933, as the 657th Repair Squadron; Consolidated on 4 December 1936, with 657th Aero Squadron
Formed as 232d Aero Squadron AEF: 25 February 1918– May 1919 Supply Squadron Air Service Acceptance Park No. 1 Orly Airport, Paris Demobilized: May 1919[35][58]
659th Aero Squadron
22 December 1917
Formed as 233d Aero Squadron AEF: 13 April 1918 – July 1919 Advance Section, Services of Supply (SOS) Supply Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919[35][39][58]
Constituted in the Organized Reserve (Illinois) 1 October 1933, as the 659th Repair Squadron; Consolidated on 4 December 1936, with 659th Aero Squadron
Formed as 234th Aero Squadron AEF: 17 May 1918 – May 1919 Supply Squadron Air Service Acceptance Park No. 1 Orly Airport, Paris Demobilized: June 1919[35][58]
Constituted in the Organized Reserve (Alabama) 1 October 1933, as the 660th Repair Squadron; Consolidated on 4 December 1936, with 660th Aero Squadron
Formed as the 235th Aero Squadron Supply Squadron, Aviation General Supply Depot, Kelly Field, Texas Re-designated 661st Aero Squadron (Supply) February 1918 Deployed to AEF May 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (New Jersey) 1 October 1933, as the 661st Repair Squadron; Consolidated on 4 December 1936, with 661st Aero Squadron
Formed as the 236th Aero Squadron Supply Squadron, Aviation General Supply Depot, Kelly Field, Texas Re-designated 662d Aero Squadron (Supply) February 1918 Demobilized: April 1919[35][40]
Constituted in the Organized Reserve (New York) 1 October 1933, as the 662d Repair Squadron; >Consolidated on 4 December 1936, with 662d Aero Squadron
Formed as the 237th Aero Squadron Supply Squadron, Kelly Field, Texas Re-designated 662d Aero Squadron (Supply) February 1918 Deployed to AEF May 1918 – December 1918 Demobilized: December 1918[35]
Constituted in the Organized Reserve (Louisiana) 1 October 1933, as the 663d Repair Squadron; Consolidated on 4 December 1936, with 663d Aero Squadron
Formed as: 337th Aero Squadron Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: April 1919 [35][40]
667th Aero Squadron
23 December 1917
Formed as 241st Aero Squadron AEF: 13 April 1918 – June 1919 Supply Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: June 1919[35][58]
672d Aero Squadron
24 December 1917
Formed as 338th Aero Squadron AEF: 15 August 1918 – December 1918 Supply Squadron Training in England entire time Demobilized: December 1918[35][58]
681st Aero Squadron
April 1918
Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919 [35][40]
684th Aero Squadron
October 1918
Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919 [35][40]
Formed as 106th Aero Squadron Re-designated: 800th Aero Squadron 1 July 1918 AEF: 2 January 1918 – 28 April 1919 Repair Squadron Demobilized: 2 July 1919 [59]
Constituted in the National Guard in 1921 as the 135th Squadron (Observation) and allotted to the state of Alabama.
Organized and federally recognized as the 135th Squadron (Observation) on 21 January 1922, with personnel from the "Birmingham Escadrille" (a civilian flying club organized in 1919 by World War I ace Maj. James A. Meissner) and federally recognized at Roberts Field, Birmingham, Alabama; Consolidated on 20 October 1936, with the 106th (800th) Aero Squadron
Formed as 107th Aero Squadron Re-designated: 801st Aero Squadron 1 July 1918 AEF: 2 January 1918 – 8 March 1919 Repair Squadron Demobilized: 18 March 1919
Constituted in the National Guard in 1921 as the 107th Squadron (Observation) and allotted to the state of Michigan; Organized and federally recognized on 7 May 1926, at Detroit, Michigan.
Formed as 108th Aero Squadron Re-designated: 802d Aero Squadron 1 July 1918 AEF: 2 January 1918 – 27 May 1919 Repair Squadron Demobilized: 11 June 1919
Constituted in the National Guard in 1921 as the 108th Squadron (Observation) and allotted to the state of Illinois; Organized and federally recognized on 1 July 1927, at the Municipal Airport, Chicago, Illinois.
Formed as 109th Aero Squadron Re-designated: 803d Aero Squadron 1 July 1918 AEF: 2 January 1918 – 13 June 1919 Repair Squadron Demobilized: 23 June 1919
Constituted in the National Guard in 1921 as the 109th Squadron (Observation) and allotted to the state of Minnesota; Organized on 21 November 1921, by re-designation of the Observation Squadron, Minnesota National Guard (organized in July 1920 and federally recognized on 17 January 1921, at Holman Municipal Airport in St. Paul, Minnesota).
Formed as 110th Aero Squadron Repair Squadron Squadron K, Kelly Field, Texas Demobilized: 18 November 1918
Constituted in the National Guard in 1921 as the 110th Squadron (Observation), and allotted to the state of Missouri
Organized and federally recognized on 23 June 1923, at Anglum Field, St. Louis, Missouri.; 1st Lt. Charles Lindbergh was a member of the squadron 1925–27; Consolidated on 20 October 1936, with the 109th (804th) Aero Squadron
Formed as: 244th Aero Squadron AEF: 15 January 1918 – June 1919 Repair Squadron Demobilized: June 1919 [35][59]
Constituted in the Organized Reserve (Oregon) on 31 March 1924, as the 805th Observation Squadron; Consolidated on 8 December 1936, with the 805th Aero Squadron Mission was to provide aerial observation support to the Commanding General, Ninth Corps Area.
Inactivated on 11 June 1937; disbanded on 31 May 1942[34]
806th Aero Squadron
November 1917
Formed as: 245th Aero Squadron AEF: February 1918 – December 1918 Repair Squadron Demobilized: December 1918 [35][59]
Constituted in the Organized Reserve (New Jersey) on 31 March 1924, as the 806th Headquarters Squadron; Consolidated on 8 December 1936, with the 806th Aero Squadron
Inactivated on 3 November 1936; disbanded on 31 May 1942[34]
819th Aero Squadron
January 1918
Aviation repair squadron Kelly Field, Texas. Demobilized: August 1919 [35][40]
820th Aero Squadron
January 1918
Aviation repair squadron Kelly Field, Texas. Demobilized: August 1919 [35][40]
822d Aero Squadron
April 1918
AEF: April 1918 – July 1919 Re-designated: 6th Air Park 4th Pursuit Group Aircraft/Vehicle maintenance and supply unit Demobilized: July 1919[3][35]
Constituted in the Army Air Service as Air Park No. 6, and assigned to the 9th Observation Group, Mitchel Field, New York on 30 August 1921; Re-designated as the 61st Service Squadron on 25 January 1923; Consolidated on 8 April 1924, with the 6th Air Park; Consolidated on 1 September 1936, with HHS, 9th Bombardment Group
AEF: 4 May 1918 – 4 March 1919 Repair Squadron 2d Air Depot Latrecey Aerodrome Demobilized: March 1919
Constituted in the National Guard in 1921 as the 128th Observation Squadron and allotted to the state of Georgia; Reconstituted and consolidated (1944) with 128th Observation Squadron; Organized and federally recognized on 1 May 1941,
Organized at Air Service Mechanics School, St. Paul Minnesota as a Repair Squadron Assigned to the Air Service Mechanics School Demobilized in November 1919[35]
Constituted in the Organized Reserve (Ohio) as the 864th Observation Squadron on 20 December 1928; Consolidated on 30 November 1936, with the 864th Aero Squadron
Inactivated by June 1937 at Akron by relief of personnel; disbanded on 31 May 1942[34]
865th Aero Squadron
March 1918
Organized at Love Field, Texas as a Repair Squadron Assigned to the Aviation Repair Depot, Dallas, Texas Demobilized in March 1919[35]
Constituted in the Organized Reserve (Illinois) as the 865th Observation Squadron on 20 December 1928; Consolidated on 30 November 1936, with the 865th Aero Squadron; Typically conducted Inactive Training Period meetings at the Municipal Airport in Chicago
AEF: 20 May 1918 – March 1919 Organized in England Repair Squadron 3d Air Depot Courban Aerodrome Demobilized: March 1919[35][59]
1101st Aero Squadron
13 April 1918
AEF: 13 April 1918 – February 1919 Organized in France Air Service Replacement Squadron 1st Air Depot Colombey-les-Belles Airdrome Demobilized: March 1919 [35][59]
1102d Aero Squadron
12 May 1918
AEF: 12 May 1918 – February 1919 Organized in France Air Service Replacement Squadron 1st Air Depot Colombey-les-Belles Airdrome Demobilized: March 1919 [35][59]
1103d Aero Squadron
9 May 1918
AEF: 9 May 1918 – February 1919 Organized in France Air Service Replacement Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: March 1919 [35][59]
1104th Aero Squadron
22 May 1918
AEF: 22 May 1918 – June 1919 Organized in France Air Service Replacement Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: July 1919 [35][59]
1105th Aero Squadron
26 May 1918
AEF: 26 May 1918 – July 1919 Organized in France Air Service Replacement Squadron 7th Aviation Instruction Center Clermont-Ferrand Aerodrome Demobilized: July 1919[35][59]
1106th Aero Squadron
1 June 1918
AEF: 1 June 1918 – September 1919 Organized in France Air Service Replacement Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: September 1919[35][59]
1107th Aero Squadron
27 July 1918
AEF: 27 July 1918 – July 1919 Organized in England Air Service Replacement Squadron Various RAF Stations in England Demobilized in England: July 1919[35][59]
1108th Aero Squadron
15 August 1918
AEF: 15 August 1918 – May 1919 Organized in France Air Service Replacement Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: June 1919[35][59]
1110th Aero Squadron
August 1918
AEF: Organized and demobilized overseas troops Demobilized December 1918[35]
1111th Aero Squadron
5 October 1918
AEF: 5 October 1918 – September 1919 Organized in Italy Air Service Replacement Squadron 8th Aviation Instruction Center Turin, Italy Demobilized: September 1919 [35][59]
Provisional squadrons, Spruce Production Division
Aero Squadron
Established
World War I
1st Prov. Squadron
March 1918
Organized as 1st Provisional Squadron at Vancouver Barracks, Washington Re-designated 21st Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
2d Prov. Squadron
March 1918
Organized as 2d Provisional Squadron at Vancouver Barracks, Washington Re-designated 22d Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
3d Prov. Squadron
March 1918
Organized as 3d Provisional Squadron at Vancouver Barracks, Washington Re-designated 23d Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
4th Prov. Squadron
March 1918
Organized as 1st Provisional Squadron at Vancouver Barracks, Washington Re-designated 24th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
5th Prov. Squadron
March 1918
Organized as 5th Provisional Squadron at Vancouver Barracks, Washington Re-designated 25th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
6th Prov. Squadron
March 1918
Organized as 6th Provisional Squadron at Vancouver Barracks, Washington Re-designated 26th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
7th Prov. Squadron
March 1918
Organized as 7th Provisional Squadron at Vancouver Barracks, Washington Re-designated 59th Spruce Squadron, July 1918, transferred to Raymond, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
8th Prov. Squadron
March 1918
Organized as 8th Provisional Squadron at Vancouver Barracks, Washington Re-designated 75th Spruce Squadron, July 1918, transferred to Clatsop, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
9th Prov. Squadron
March 1918
Organized as 9th Provisional Squadron at Vancouver Barracks, Washington Re-designated 60th Spruce Squadron, July 1918, transferred to Hoquiam, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
11th Prov. Squadron
March 1918
Organized as 11th Provisional Squadron at Vancouver Barracks, Washington Re-designated 75th Spruce Squadron, July 1918, transferred to Astoria, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
12th Prov. Squadron
March 1918
Organized as 12th Provisional Squadron at Vancouver Barracks, Washington Re-designated 76th Spruce Squadron, July 1918, transferred to Bridal Veil, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
13th Prov. Squadron
April 1918
Organized as 13th Provisional Squadron at Vancouver Barracks, Washington Re-designated 77th Spruce Squadron, July 1918, transferred to Clatsop, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
14th Prov. Squadron
April 1918
Organized as 14th Provisional Squadron at Vancouver Barracks, Washington Re-designated 78th Spruce Squadron, July 1918, transferred to Astoria, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
15th Prov. Squadron
April 1918
Organized as 15th Provisional Squadron at Vancouver Barracks, Washington Re-designated 61st Spruce Squadron, July 1918, transferred to Nemah, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
16th Prov. Squadron
April 1918
Organized as 16th Provisional Squadron at Vancouver Barracks, Washington Re-designated 82d Spruce Squadron, July 1918, transferred to Yaquina, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
17th Prov. Squadron
April 1918
Organized as 17th Provisional Squadron at Vancouver Barracks, Washington Re-designated 62d Spruce Squadron, July 1918, transferred to Elma, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
18th Prov. Squadron
April 1918
Organized as 18th Provisional Squadron at Vancouver Barracks, Washington Re-designated 83d Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
19th Prov. Squadron
April 1918
Organized as 19th Provisional Squadron at Vancouver Barracks, Washington Re-designated 63d Spruce Squadron, July 1918, transferred to Bay City, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
20th Prov. Squadron
April 1918
Organized as 20th Provisional Squadron at Vancouver Barracks, Washington Re-designated 84th Spruce Squadron, July 1918, transferred to Waldport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
21st Prov. Squadron
May 1918
Organized as 21st Provisional Squadron at Vancouver Barracks, Washington Re-designated 85th Spruce Squadron, July 1918, transferred to Waldport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
22d Prov. Squadron
May 1918
Organized as 22d Provisional Squadron at Vancouver Barracks, Washington Re-designated 86th Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
23d Prov. Squadron
June 1918
Organized as 23d Provisional Squadron at Vancouver Barracks, Washington Re-designated 106th Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
24th Prov. Squadron
June 1918
Organized as 24th Provisional Squadron at Vancouver Barracks, Washington Re-designated 87th Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
25th Prov. Squadron
June 1918
Organized as 25th Provisional Squadron at Vancouver Barracks, Washington Re-designated 88th Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
26th Prov. Squadron
June 1918
Organized as 26th Provisional Squadron at Vancouver Barracks, Washington Re-designated 89th Spruce Squadron, July 1918, transferred to Waldport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
27th Prov. Squadron
June 1918
Organized as 27th Provisional Squadron at Vancouver Barracks, Washington Re-designated 90th Spruce Squadron, July 1918, transferred to Newport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
28th Prov. Squadron
June 1918
Organized as 28th Provisional Squadron at Vancouver Barracks, Washington Re-designated 91st Spruce Squadron, July 1918, transferred to Yaquina, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
29th Prov. Squadron
June 1918
Organized as 29th Provisional Squadron at Vancouver Barracks, Washington Re-designated 92d Spruce Squadron, July 1918, transferred to Agate Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
30th Prov. Squadron
June 1918
Organized as 30th Provisional Squadron at Vancouver Barracks, Washington Re-designated 93d Spruce Squadron, July 1918, transferred to Newport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
31st Prov. Squadron
July 1918
Organized as 31st Provisional Squadron at Vancouver Barracks, Washington Re-designated 27th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
32d Prov. Squadron
July 1918
Organized as 32d Provisional Squadron at Vancouver Barracks, Washington Re-designated 28th Spruce Squadron, July 1918[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
33d Prov. Squadron
July 1918
Organized as 32d Provisional Squadron at Vancouver Barracks, Washington Re-designated 94th Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
34th Prov. Squadron
July 1918
Organized as 34th Provisional Squadron at Vancouver Barracks, Washington Re-designated 95th Spruce Squadron, July 1918, transferred to Waldport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
35th Prov. Squadron
July 1918
Organized as 35th Provisional Squadron at Vancouver Barracks, Washington Re-designated 103d Spruce Squadron, July 1918, transferred to Coquille, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
36th Prov. Squadron
July 1918
Organized as 36th Provisional Squadron at Vancouver Barracks, Washington Re-designated 96th Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
37th Prov. Squadron
July 1918
Organized as 37th Provisional Squadron at Vancouver Barracks, Washington Re-designated 97th Spruce Squadron, July 1918, transferred to Newport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
38th Prov. Squadron
July 1918
Organized as 38th Provisional Squadron at Vancouver Barracks, Washington Re-designated 98th Spruce Squadron, July 1918, transferred to Newport, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
39th Prov. Squadron
July 1918
Organized as 39th Provisional Squadron at Vancouver Barracks, Washington Re-designated 99th Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
40th Prov. Squadron
July 1918
Organized as 40th Provisional Squadron at Vancouver Barracks, Washington Re-designated 100th Spruce Squadron, July 1918, transferred to South Beach, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
41st Prov. Squadron
July 1918
Organized as 41st Provisional Squadron at Vancouver Barracks, Washington Re-designated 40th Spruce Squadron, July 1918, transferred to Joyce, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
42d Prov. Squadron
July 1918
Organized as 42d Provisional Squadron at Vancouver Barracks, Washington Re-designated 101st Spruce Squadron, July 1918, transferred to Toledo, Oregon[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
43d Prov. Squadron
July 1918
Organized as 43d Provisional Squadron at Vancouver Barracks, Washington Re-designated 41st Spruce Squadron, July 1918, transferred to Joyce, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
44th Prov. Squadron
July 1918
Organized as 44th Provisional Squadron at Vancouver Barracks, Washington Re-designated 64th Spruce Squadron, July 1918, transferred to Aberdeen, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
45th Prov. Squadron
July 1918
Organized as 45th Provisional Squadron at Vancouver Barracks, Washington Re-designated 65th Spruce Squadron, July 1918, transferred to Raymond, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
46th Prov. Squadron
July 1918
Organized as 46th Provisional Squadron at Vancouver Barracks, Washington Re-designated 107th Spruce Squadron, July 1918, transferred to Cosmopolis, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
47th Prov. Squadron
July 1918
Organized as 47th Provisional Squadron at Vancouver Barracks, Washington Re-designated 108th Spruce Squadron, July 1918, transferred to Humptulips, Washington[35] Assigned to Spruce Production Division; Demobilized: January 1919[35]
^Robertson, Patsy (17 March 2015). "9 Bomb Squadron (ACC)". Air Force Historical Research Agency. Archived from the original on 27 September 2015. Retrieved 1 October 2017.
^Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 2, 9th and 10th Aero Squadrons
^ abcdefghijklSeries "N", Volume 16, Gorrell's History of the Air Service and Special Aviation Maps AND Station Lists for Air Service Units, Oct–Dec 1918
^ abcdefghijklmH. D. Kroll (editor), Kelly Field in the Great World War, 2d edition, 1919
^ abcdeGorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 15, 97th-102d Aero Squadrons
^ abcdefghGorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 17, 104th, 105th, 120th, 135th, 137th–139th, 141st, and 142d Aero Squadrons
^ abcdefRobert Swanson, Domestic United States Military Facilities of the First World War 1917–1919
^Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 19, 148th Aero Squadron
^ abcdefghijklmnopqrstuvwxyzaaabacGorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 20, 149th, 151st–155th, 157th–159th, 161st-163d, 165th, 166th, 171st–174th, 176th, 182d, 184th–186th, 188th, and 199th
^National Archives copy of "HISTORY OF 156th AERO SQUADRON" provided by Commanding Officer, 1st. Lieut. Joseph H. McCandless at muster out
^Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 21, 213th Aero Squadron
^ abcdefghijklmnopqrGorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 22, 222d, 223d, 227th, 247th, 248th, 257th–261st, 264th, 266th, 267th, 269th, 270th, 278th, 281st, 309th, 334th, 338th, 341st, 350th, 351st, 353d, 354th, 369th, 370th, and 372d-376th Aero Squadrons
^Microfilm: Morning Reports, 255 Aero Squadron. NARA National Personnel Records Center; St. Loius, Missouri
^ abcdefghijklmnopqrstuvwxyzaaabacadaeGorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 23, 400th, 462d-470th, 474th, and 480th–500th Aero Squadrons
^To be confirmed: squadron's history mentions only Romorantin
^ abcdefghijklmnopqrstuGorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 24, 636th–646th, 648th–650th, 655th–660th, and 667th Aero Squadrons
^ abcdefghijklmnopqrstuvGorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 25, 800th-803d, 805th, 806th, 825th–830th, 835th, 837th, 875th, 1099th, 1101st–1108th, and 1111th Aero Squadrons
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