National Museum of Nuclear Science & History
Abel DeHaan was a civilian chemist that worked at the Y-12 Complex in Oak Ridge, TN. DeHaan was hired for the Manhattan Project by Glenn Seaborg while in his last year of a B.
Arthur L. Hughes was an British/Welsh physicist. He worked on the Manhattan Project in St. Louis on the cyclotron and plutonium production and at Los Alamos, NM.