National Museum of Nuclear Science & History
M. C. Barto worked for the Roane-Anderson Company.
Attended the University of Kentucky.
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.
Francis worked in the United States Engineer District Office.
J. M. Cox worked for the Tennessee Eastman Corporation at the Y-12 Plant.
