National Museum of Nuclear Science & History
R. H. Elder worked for the Edenfield Electric Company.
Josef Novak worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Hilford Nelson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Walter R. Julek was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.