National Museum of Nuclear Science & History
Sanford McDonnell was a mechanical engineer with the Special Engineering Detachment at Los Alamos from April 1944 to April 1946.
John Douglas Cockcroft was a British physicist and recipient of the 1951 Nobel Prize in Physics. He was a member of the Tizard Mission to the United States in the autumn of 1940.
John Nomerding was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.