National Museum of Nuclear Science & History
N. F. Smyth worked for the Kellex Corporation at the K-25 Plant.
N. R. Glarum worked for Clinton Laboratories at the X-10 Reactor.
Ruth Rottman was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Wilber A. Stevens was an army officer in charge of overseeing construction at Los Alamos. He helped choose the site where the Manhattan Project would test its first atomic bomb.