National Museum of Nuclear Science & History
Olge W. Hess was a research assistant at the University of Chicago’s Metallurgical Laboratory.
William Steadman was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Martin G. Murray served as a corporal in the 393rd Bombardment Squadron. He was regularly assigned to the Necessary Evil as a tail gunner, but flew in the Big Stink in the Nagasaki Mission.
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.