National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Richard E. Blouse served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Necessary Evil.
Helen Warren worked for the Edenfield Electric Company.
John Luttrell worked for the United States Engineer District Office.