National Museum of Nuclear Science & History
William Stephenson worked for the J.A. Jones Construction 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.
Barbara McLeod worked for the United States Engineer District Office.
Harold F. Seaman served in the 603rd Air Engineering Squadron.