National Museum of Nuclear Science & History
R. H. Martin worked for the United States Engineer District Office.
Norma K. Hipple was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Claude C. Gilliam served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 The Great Artiste.
Wilcox P. Overbeck was a research associate and instrumentation designer at the Chicago Met Lab. He was responsible for calling out the neutron count when Chicago Pile-1 went critical on December 2, 1942.