National Museum of Nuclear Science & History
Maier worked for Stone and Webster Engineering Corporation.
Fred A. Hoey served as a 1st lieutenant in the 393rd Bombardment Squadron. He was the navigator 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.
William L. Littlejohn served in the 603rd Air Engineering Squadron.
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.