National Museum of Nuclear Science & History
R. B. Jacobs worked for the Kellex Corporation at the K-25 Plant.
Joseph E. Draley was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Thomas T. Tijerina served in the 393rd Bombardment Squadron.
Martin Punis was a laboratory helper at the Chicago Met Lab during the Manhattan Project.