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.
Lionel Ames is an Army and Manhattan Project veteran, who worked at Los Alamos. His is also the brother of Maurice Shapiro, who was a Los Alamos scientist.
Conrad worked in the United States Engineer District Office.
Matthew A. Guszak served in the 1395th Miliary Police Company, Aviation.
