National Museum of Nuclear Science & History
F. C. Armistead worked for the Union Carbide & Carbon Corporation.
Clarence W. Hartman served in the 393rd Bombardment Squadron.
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.
Hazel Teeter worked for the United States Engineer District Office.