|courtesy of Des Philippet|
Oliver volunteered for Army service in August 1942. After enlistment he would have gone through basic training and Officer Candidate School before he was sent to the European theater of operations. 2LT Mayo was first assigned to F Company 116th Infantry from the replacement depot. Serving as a rifle platoon leader, he was wounded just 5 days later and evacuated to hospital on 19 Jun 1944. It probably took a while to recover as he was returned to the regiment from the replacement depot, this time assigned to E Company 116th Infantry on 18 Oct 1944. On 30 Oct 1944 he was moved from a platoon leader position to serve as the company executive officer. 2LT Mayo was wounded again on 23 Nov 1944 and again evacuated. He was returned to E Company on 30 Mar 1945 to serve as a platoon leader but on 2 Apr 1945 was reassigned to C Company 116th Infantry to fill a platoon leader vacancy in that unit. 2LT Mayo was killed in action on 4 Apr 1945.
2LT Mayo rests forever in the Netherlands American Cemetery.
3 brothers served as well. William Wade Mayo attained the rank of MSG. Ivan V Mayo served as a SSG in the Army Air Corps. Andrew Jackson Mayo served as a SRCPO in the U.S. Navy. His father served in the Navy in WWI.