|Rank||Second Lieutenant U.S. Army|
|Date of Death||June 24 1954|
Korean Service Medal
National Defense Service Medal
United Nations Service Medal
Combat Infantryman Badge
Second Lieutenant O'Connor was awarded the Purple Heart, the Combat Infantryman Badge, the Korean Service Medal, the United Nations Service Medal, the National Defense Service Medal and the Korean War Service Medal.
Second Lieutenant O'Connor was a member of Company G, 2nd Battalion, 31st Infantry Regiment, 7th Infantry Division. On June 24, 1954, he noticed that a comrade had been injured in the demilitarized zone (DMZ) by an enemy anti-personnel mine. He was attempting to rescue the victim when he accidentally set off another anti-personnel mine killing him.