National Museum of Nuclear Science & History
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.
Frank Alvidnes was a staff worker at Los Alamos during the Manhattan Project.
Farrell worked in the United States Engineer District Office.
Waldo Houser worked for the Tennessee Eastman Corporation at the Y-12 Plant.
