Reuben (also spelled as Reubin) Leonard was born December 17, 1926. He was the son of Della Leonard of 1316 Jasper Street. He had one sister Florine Boggues of Knoxville and two brothers, Arthur Leonard of Knoxville and Curtis Leonard of Waterbury, Connecticut.
Private First Class Leonard joined the United States Marines on May 6, 1952, at the age of twenty five. He was a member of Company D, 2nd Battalion, 7th Marines, 1st Marine Division. He was killed in action in the final months of the war while fighting the enemy in the Western Outposts of Korea on April 9, 1953.
Reuben was repatriated back to Knoxville on June 20, 1953, over the Southern Railway and funeral services were held on June 22, 1953, at Jarnigan and Son Funeral Home. Reuben was interred at the Knoxville National Cemetery.