Jack Eaton World War II veteran Jack Eaton, 100, sits in the Tomb Quarters at Arlington National Cemetery, Va., Oct. 23, 2019. Eaton, a former Army corporal, served as a sentinel at the Tomb of the Unknown Soldier from 1938-1940. SHARE: Download: Full Size (6.05 MB) Tags: World War II, tomb of the unknown soldier, Veterans, Army Credit: Elizabeth Fraser, Army VIRIN: 191023-A-IW468-351.JPG Photo Gallery