National Museum of Nuclear Science & History
N. F. Smyth worked for the Kellex Corporation at the K-25 Plant.
Marietta C. Moore was a technician in the Health Division at the University of Chicago Met Lab. She signed the Szilard petition.
James K. Elder, Jr. served as a technical sergeant in the 393rd Bombardment Squadron. He was the flight engineer regularly assigned first to Luke the Spook and later to Big Stink.