The following year, Brewer left college in order to enter the United States Army during World War I. He was stationed at Camp Crane in Allentown, Pennsylvania to train as part of the U.S. Army Ambulance Corps (USAAC) before deployment to France. While in Pennsylvania, he played on the "Usaacs" football team."The Usaacs Are Coming!", Outing, p. 38, 1918. Its roster included other future football professionals such as Tuffy Conn and Carl Beck.U.S. Army Ambulance Corps, Ghosts of the Gridiron, retrieved June 9, 2009.USAACS Beat Marines; Superior At Every Point , The Philadelphia Record, October 28, 1917.
