USS Lancaster (ID-2953) was a commercial cargo ship acquired by the U.S. Navy during World War I. She served the war effort by carrying cargo across the Atlantic Ocean, and, at war’s end, bringing home the troops.
Assigned to the Naval transportation service (NOTS), Lancaster departed New York City 13 July with cargo for South American ports. Arriving Buenos Aires, Argentina, 10 days later, she discharged her cargo and proceeded to Marseilles, France, where she arrived 28 October. After the Armistice was signed 11 November, Lancaster returned to New York City the following month to join the Cruiser Transport Force 17 December.
Troopship assignment
Lancaster together with other units of the Cruiser Transport Force was assigned the task of returning World War I veterans from Europe to the United States. The force returned over 85 percent of the veterans during the period from November 1918 to July 1919.
Post-war dispositioning
Completing her service, Lancaster decommissioned 4 October 1919 and was returned to the United States Shipping Board (USSB) the same day.