National Museum of Nuclear Science & History
C. A. Norris worked for the Midwest Piping and Supply Company.
Leamon Babb was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Earl K. Hyde was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. R. Spangler worked for the Tennessee Eastman Corporation at the Y-12 Plant.