National Museum of Nuclear Science & History
David Holcomb is nuclear engineer who specializes in instrumentation and controls for the molten salt reactors at the Oak Ridge National Laboratory (ORNL).
W. A. Witt worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Ralph Lawson worked for the United States Engineer District Office.
