National Museum of Nuclear Science & History
James E. Grady served in the 1st Ordnance Squadron.
Wilhelm Delp Styer (1893-1975) was a Lieutenant General in the US Army and an instrumental figure in the early stages of military involvement in the Manhattan Project.
Frank Swoboda was a staff worker at Los Alamos during the Manhattan Project.
Helen R. Hughes was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.