Walter E. Dial

Roger Hultgren

Minnesota native Roger Hultgren worked for the DuPont Company as a chemist during the early 1940s, initally assigned to the Jolliet, Illinois munitions plans.

Gilbert B. Prothero

Gilbert Prothero worked for the United States Engineer District Office.

Richard A. Bice

Richard A. Bice was an engineer. He joined the Manhattan Project at Los Alamos in 1944, rising to become the alternate Group Leader in X-Division.

Donald Anderson