National Museum of Nuclear Science & History
Leslie Spalding worked for the United States Engineer District Office.
Elery M. Groves served in the 1027th Air Material Squadron.
Okey B. Ellison was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Joseph E. Westover served as a captain in the 393rd Bombardment Squadron. He was the commander regularly assigned to the B-29 Strange Cargo.