National Museum of Nuclear Science & History
E. T. O'Conner worked for the Roane-Anderson Company.
Minnesota native Roger Hultgren worked for the DuPont Company as a chemist during the early 1940s, initally assigned to the Jolliet, Illinois munitions plans.
Henry J. Wollweber was a guard at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
