National Museum of Nuclear Science & History
C. E. Twigg worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John McKim worked for the Kellex Corporation at the K-25 Plant.
Roy Tonneson worked for the Asbestos & Magnesia Materials Company.
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.
