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.
Paul Galle worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Franklin MacGregor served as a second lieutenant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.