National Museum of Nuclear Science & History
Harold Smith worked for the Kellex Corporation at the K-25 Plant.
Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Nelen Supert was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Colonel Austin Wortham “Cy” Betts worked under General Kenneth D. Nichols during the Manhattan Project.
W. R. Sutton worked for the Edenfield Electric Company.
