National Museum of Nuclear Science & History
John Sullivan was a staff worker at Los Alamos during the Manhattan Project.
Arthur Garry worked for the Midwest Piping and Supply Company.
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.
W. G. Minser, Jr. worked for the United States Engineer District Office.
