National Museum of Nuclear Science & History
Doyel Stephenson worked for the J.A. Jones Construction Company.
M. L. Piker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Richard Hodge worked for the Kellex Corporation at the K-25 Plant.
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.