Jack H. Goodwin

Dorothy Howard

Ruth A. Casler

Ruth A. Casler was a lab technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

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.

Frank C. Cook

Frank Cook worked for the JA Jones Construction Company in Oak Ridge, Tennessee during the Manhattan Project.