Joseph B. Kessler

Ben Benjamin

Ben Benjamin was a sergeant in the Special Engineer Detachment during the Manhattan Project. He had previously worked in industry making lenses and prisms, and was assigned to the Optics Group to help with photographing the Trinity Test.

Clark E. Center

Clark Center was a Manhattan Project veteran, who was the general superintendent and later President of the Union Carbide Nuclear Division in Oak Ridge.

Gertrude Williams

Gertrude Williams worked for the United States Engineer District Office.

C. B. Slade