National Museum of Nuclear Science & History
C. H. Smith worked for the J.A. Jones Construction Company.
Herman Snyder worked on the Manhattan Project at Oak Ridge as a soldier in the Special Engineer Detachment.
Manuel Schwartz was a physicist. He worked at Los Alamos as a civilian employee from about July 6, 1944, until January or February 1946.
George Morgan was a chemical engineer who worked for the Manhattan Project in both New York and Oak Ridge, TN.