National Museum of Nuclear Science & History
Marietta C. Moore was a technician in the Health Division at the University of Chicago Met Lab. She signed the Szilard petition.
Ralph R. McCoy served in the 393rd Bombardment Squadron.
James Barton worked as a carpenter for the DuPont Company at the Hanford, Washington site. He never knew he was working on the atomic bomb until after it was dropped in Japan.
Walter Youngs, Jr. worked for the United States Engineer District Office.
