Glen served as a Staff Sergeant and Waist Gunner on B-17 (#42-102613), 508th Bomber Squadron, 351st Bomber Group, 8th Air Force, U.S. Army Air Force during World War II. He resided in Knox County, Tennessee prior to the war. He enlisted in the Army Air Corps on August 21, 1942 at Camp Forrest, Tennessee. He was noted, at the time of his enlistment, as being employed as a Welder and also as Single, without dependents. Glen was "Killed In Action" when his B-17 was shot down on Mission 133 to Berlin, Germany. He was awarded the Air Medal and the Purple Heart. He was originally interred overseas and was later repatriated here on June 12, 1951. Service # 14134412