National Museum of Nuclear Science & History
Chlorus M. Spiker served in the 603rd Air Engineering Squadron.
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.
Meyer Steinberg is a chemical engineer and a veteran of the Special Engineer Detachment. After graduating from Cooper Union College with a degree in chemical engineering, Steinberg was drafted and placed in the Special Engineer Detachment at Oak Ridge.