National Museum of Nuclear Science & History
W. W. Hazlett worked for the Fercleve Corporation.
Howard “Howie” Wilcox was an American physicist. He studied at the University of Minnesota and was a teaching fellow at Harvard when he was recruited to work on the Manhattan Project at Los Alamos.
Frank Alexander worked for Clinton Laboratories at the X-10 Reactor.
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.