He registered for the WWII draft on 16 October 1940, employed by Boeing Aircraft, resided in Pendleton, Umatilla, OR, and described himself as 5’7”, 160 lbs, with brown hair and eyes. He enlisted in the USAAF at Vancouver Barracks, Washington, on 9 January 1941. He was trained to maintain the mechanical systems (asst. crew chief) on the C-87 Express Liberator. He earned his crewman wings. He was sent overseas to India. On 19 July 1943 a C-87 (B-24 cargo variant, Express Liberator), # 41-11907, assigned to 10th Air Force, 22nd Transport Group, 77th Transport Squadron, Jorhat, India, departed the airfield on a cargo mission through the Himalayan mountain range (the Hump). It crashed in Burma. Its last known position was at 97° 0’ East & 26° 50’ North at 6,000 feet altitude. An annotation says that parachutes were used. He is remembered on the tablets of the missing in the Manila American Cemetery & Memorial, Philippines. A memorial marker was placed in the Olney Cemetery, Pendleton, Umatilla Co., Oregon.
His brother, George W. Roush, born 14 June 1921, served in the USAAF but was killed on 14 June 1944 while an aviation cadet in the midair collision of two training aircraft about two miles southwest of Enid Field, Enid, Garfield Co., Oklahoma. He was buried in the Olney Cemetery, Pendleton, Umatilla Co., Oregon.