National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Robert J. Valley served as a technical sergeant in the 393rd Bombardment Squadron. He was the tail gunner of the B-29 Full House, which served as a weather reconnaissance plane on the Hiroshima bombing mission, and the backup strike plane on Iwo Jima on the Nagasaki mission.
W. A. Bogdanowiez worked for the Tennessee Eastman Corporation at the Y-12 Plant.