National Museum of Nuclear Science & History
Robert M. Haider served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Bockscar.
Helen J. Arson was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Bergen McCormick worked for the J.A. Jones Construction Company.
Arthur W. Collins served in the Special Engineer Detachment and Project Alberta.
