National Museum of Nuclear Science & History
Minnesota native Roger Hultgren worked for the DuPont Company as a chemist during the early 1940s, initally assigned to the Jolliet, Illinois munitions plans.
W. J. Dowis worked at the 200 West Area at Hanford during the Manhattan Project.
Sid Williams worked for the H. K. Ferguson Company.
Leon Sayvetz was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
