Emmert L. Nelson

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.

Cardea Hubbard

Cardea Hubbard was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

George P. Sibulski

George P. Sibulski served in the 603rd Air Engineering Squadron.

Bernard A. Hojnowski