Sergeant Major, S.A.T.C., University of North Dakota; son of Perry Armstrong; born November 1, 1886; entered service July 8, 1918 taking up work in the Radio Section. He was promoted from Private to Private First Class on August 2, 1918 and then to Corporal on August 23, 1918. He was promoted Sergeant on September 14, 1918 then to Sergeant Major on October 15, 1918. He died of pneumonia on October 29, 1918.