National Museum of Nuclear Science & History
Silver worked for Stone and Webster Engineering Corporation.
Elery M. Groves served in the 1027th Air Material Squadron.
Marietta C. Moore was a technician in the Health Division at the University of Chicago Met Lab. She signed the Szilard petition.
Jas Snodgrass worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Frederick H. Nelson served in the 1st Ordnance Squadron.