Alfred H. Blandine

John Costa

John Costa worked at the shop in the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Robert G. Boardwine

H. G. Hoberg

H. G. Hoberg worked for the United States Engineer District Office.

James L. Gordon

James Gordon was an electrical engineer working as a civilian contractor for the DuPont Company at the Hanford, Washington site for the Manhattan Project.