National Museum of Nuclear Science & History
Charles Swenson worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
R. L. McCormick worked for the J.A. Jones Construction Company.
Fred Vogel was an American chemical engineer who worked at Los Alamos during the Manhattan Project. Vogel studied at Lehigh University in Pennsylvania and later worked as Chief Engineer for the Cornell Machine Company and for the Centaur Machine Company.