National Museum of Nuclear Science & History
Frederick Trapnell was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
T. W. Hungerford, Jr. worked for Clinton Laboratories at the X-10 Reactor.
G. C. Kreis worked for the J.A. Jones Construction Company.
D. D. Clayton worked for the Roane-Anderson Company.
Robert JS Brown was a member of the Special Engineer Detachment at Los Alamos. He worked under Don Hornig on the electrical aspects of detonation for the plutonium bomb.