Career
Harmon joined the Army from Pixley, California, and by July 12, 1944, was serving as a Sergeant in Company C, 362nd Infantry Regiment, 91st Infantry Division. On that day, near Casaglia, Italy, he single-handedly attacked three German positions which were firing on a friendly platoon. He destroyed one position and, despite being wounded on his approach, continued to silence another.
He was killed while attacking the third position.
Harmon was buried at the Florence American Cemetery in Florence, Italy.