National Museum of Nuclear Science & History
George Economou was an optical systems expert. Economou graduated from Harvard University with a degree in astronomy.
Marvin Davis was a part of the Military Police at Los Alamos. He was a mounted MP at the Trinity site before, during and after the famous test.
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.