National Museum of Nuclear Science & History
Grovsnor worked in the United States Engineer District Office.
Thomas Cowley was a Military Policeman assigned to Post Security at Los Alamos, New Mexico during the Manhattan Project.
Sidney Schneider was an aerial gunner and worked in bomb disposal with the 1027th Air Material Squadron in the 509th Composite Group.
Gerald Landsman worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
Benjamin Nelson served in the Army at Los Alamos during the Manhattan Project.