Thomas A. Rodolico

Mary S. Clark

Clark worked in the United States Engineer District Office.

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.

V. A. Thurston

V. A. Thurston worked for the Roane-Anderson Company.

Helmut G. Rau