Harold David McMillon was born in Bledsoe County on August 17, 1930, to Milton W. and Lavada McMillon. His brothers Virgil, Church, Carl, James, Francis Eugene and sisters, Alice, Dorothy, Edith, Louise, Willie Grace, and Elizabeth McMillon moved from rural Rhea county to Bledsoe county in the late 1930s. Harold enlisted in the United States Army on December 13, 1948, and served with his unit until he was killed in action. Private First Class McMillon was returned to Pikeville for burial at the Pikeville Cemetery.
Private First Class McMillon was a member of the 19th Infantry Regiment, 24th Infantry Division. He was Killed in Action while fighting the enemy in South Korea on July 20, 1950. Private First Class McMillon was awarded the Purple Heart, the Combat Infantrymans Badge, the Korean Service Medal, the United Nations Service Medal, the National Defense Service Medal, the Korean Presidential Unit Citation and the Republic of Korea War Service Medal.