National Museum of Nuclear Science & History
Arthur Scott Weygandt was a chemical engineer at DuPont.
Rose Pingel was a staff worker at Los Alamos during the Manhattan Project.
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Thomas Cowley was a Military Policeman assigned to Post Security at Los Alamos, New Mexico during the Manhattan Project.
