National Museum of Nuclear Science & History
Blackstone worked in the United States Engineer District Office.
Charles Schoder was a staff worker at Los Alamos during the Manhattan Project.
Carl Becker 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.
