National Museum of Nuclear Science & History
M. A. Ruth worked for the United States Engineer District Office.
Minnesota native Roger Hultgren worked for the DuPont Company as a chemist during the early 1940s, initally assigned to the Jolliet, Illinois munitions plans.
Richard Smith worked for the United States Engineer District Office.
S. W. Pratt worked for Clinton Laboratories at the X-10 Reactor.