Master Sergeant Mark was a veteran of World War II, serving at Pearl Harbor during the Japanese attack. In Korea, he was a medic with the Medical Company, 31st Infantry Regiment, 7th Infantry Division. On December 1, 1950, his convoy was moving was ambushed by Chinese forces near the Chosin Reservoir, North Korea. He was seriously wounded while tending his wounded comrades and taken prisoner. He died of those wounds on December 7, 1950. His remains were not recovered. His name is inscribed on the Courts of the Missing at the Honolulu Memorial.