National Museum of Nuclear Science & History
R. H. Duncan worked for the Comstock-Bryant Electric Company.
Staley worked at the Y-12 plant at Oak Ridge during the Manhattan Project.
Ralph Nobles was one of three brothers to work on the Manhattan Project. He and his brother William worked at Los Alamos, while brother Robert was at the University of Chicago’s Metallurgical Laboratory.
Robert Kupp joined the Manhattan Project at Oak Ridge in January 1945. Kupp was a supervisor in the Line Recorder Department at K-25, where he monitored a mass spectrometer that determined the concentration of various material in the cascade while it was being processed.