|Rank||Captain U.S. Air Force|
|Date of Death||May 21 1952|
National Defense Service Medal
World War II Victory Medal
Captain O'Brien was awarded the National Defense Service Medal and the World War II Victory Medal.
Captain O'Brien was a veteran of World War II. During the Korean War, he was a pilot of an F-84 jet with the U.S. Air Force "Skyblazers" aerobatic jet team from Fuerstenfeldbruck, Bavaria. On May 21, 1952, after his team completed for the 123rd Fighter Bomber Wing at Manslon, England, his aircraft crashed and exploded near Mansion.