National Museum of Nuclear Science & History
Arthur Watmough was an electrical engineer working for the DuPont Chamberworks Company in New Jersey from 1941 to 1947.
Elvin Krieble worked for the United States Engineer District Office.
E. B. Dutton worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Leamon Babb was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
