National Museum of Nuclear Science & History
Ralph Shelley worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Minnesota native Roger Hultgren worked for the DuPont Company as a chemist during the early 1940s, initally assigned to the Jolliet, Illinois munitions plans.
Bresier worked at Los Alamos during the Manhattan Project.
Dennis Dwyer was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.