R.A. Nederhood

John P. Montagano

J. V. Ruan

Ruan worked for Stone and Webster Engineering Corporation.

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.

R. M. Girdler

Girdler worked at the 300 Area at Hanford during the Manhattan Project.