National Museum of Nuclear Science & History
H. O. Arnold worked for the Kellex Corporation at the K-25 Plant.
Jack Widowsky served as a second lieutenant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
Charles E. Kimber served in the 320th Troop Carrier Squadron.
F. C. Lowry worked for the Tennessee Eastman Corporation at the Y-12 Plant.
