Andrews again returned to the army for World War I; he attained the rank of brigadier general, and his service culminated with assignment as Assistant Chief of Staff for Personnel (C-1) on the headquarters staff of the American Expeditionary Forces. After the war, Andrews remained a brigadier general in the Organized Reserve Corps until retiring in 1926. He practiced law until retiring to Florida in 1943.
In 1934, Andrews published a Pershing biography. He died in Florida in 1959, and was buried at Arlington National Cemetery.
Andrews established a successful law practice in New York City as a partner in the firm of Wells and Andrews.[1] He was also an officer and director of several corporations including general counsel and vice president for Barber Asphalt Paving Company; American representative for the Royal Dutch Shell Petroleum Company; Director of Irving Trust Company; and Director of Central National Bank.[1] In 1895 he was appointed to New York City's Board of Police Commissioners by Mayor William L. Strong.[1] Andrews served as treasurer of the board while Theodore Roosevelt was its president.[4]
Spanish–American War
After resigning from the Army, Andrews was appointed Engineers officer on the staff of the New York National Guard's 1st Brigade, and commissioned as a major.[1] In 1898 he was appointed commander of Squadron A, a separate unit of the New York National Guard.[1] When the Spanish–American War began in 1898, Andrews was commissioned a lieutenant colonel in the United States Volunteers, and assigned as chief quartermaster and assistant inspector general on the staff of 1st Division, Sixth Army Corps, which was commanded by Major General James H. Wilson.[1]
In 1899, Andrews was appointed Adjutant General of New York by Theodore Roosevelt, who had won the 1898 election for governor.[1] Andrews was promoted to brigadier general in the National Guard, and he served as adjutant general until 1900.[1]
Post-Spanish–American War
After the war, Andrews returned to his law practice and business interests, and was recognized as an expert in federal and state laws pertaining to the railroad, oil, and banking industries.[1]
World War I
When the United States entered World War I in 1917, Andrews was appointed Director of Military Service for the state of Pennsylvania's Committee of Public Safety.[1] In October of that year he resigned as director in order to return to active military service.[1] Commissioned as a colonel of Engineers in the National Army, he sailed for France in November.[1] Andrews joined the Service of Supply, and served successively as deputy director of Transportation, Deputy Chief of Utilities, and Deputy Assistant Chief of Staff.[1] In August 1918, he was appointed Assistant Chief of Staff for Personnel (C-1) on the headquarters staff of the American Expeditionary Forces.[1] He was promoted to brigadier general in October 1918, and served until returning to the United States and receiving his discharge in May, 1919.[1]
Post-World War I
Following his World War I service, Andrews was appointed a brigadier general in the Organized Reserve Corps, and he served from 1921 until retiring in April, 1926.[1] He continued to practice law and serve on corporate boards, and he remained active until retiring in 1943 and moving to Winter Park, Florida.[1] He was president of the Association of Graduates of the United States Military Academy from 1928 to 1931[1] and served as a trustee of George Washington University and the Grant Memorial Association, and a director of the American Society of the French Legion of Honor.[1] In 1934 he authored a biography, My Friend and Classmate, John J. Pershing.[1]
The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting the Army Distinguished Service Medal to Brigadier General Avery DeLano Andrews, United States Army, for exceptionally meritorious and distinguished services to the Government of the United States, in a duty of great responsibility during World War I. As Assistant Chief of Staff, American Expeditionary Forces, General Andrews has rendered most efficient service in connection with the organization and administration of the Transportation Department of the American Army in France and as Deputy Chief of Utilities in the Services of Supply. Later, with marked ability, he headed the important administrative section of the General Staff of the American Expeditionary Forces.[5]
On September 27, 1888, Andrews married Mary Campbell Schofield, the daughter of Lieutenant General John Schofield.[1] They were the parents of sons Schofield (1889-1971) and Delano Andrews (1894-1958), both of whom were veterans of World War I and prominent attorneys.[1]
"Memorial, Avery D. Andrews 1886". apps.westpointaog.org/. West Point, NY: West Point Association of Graduates. 1959. Archived from the original on February 21, 2018. Retrieved February 21, 2018.