National Museum of Nuclear Science & History
R. J. Guthrie worked for the Watson-Flagg Engineering Company.
Frey worked in the United States Engineer District Office.
Donald D. Fockler served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew on the B-29 Full House.
Edward F. Kolley was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
