National Museum of Nuclear Science & History
Grover Davis served in the 1st Ordnance Squadron.
Parsons worked in the 300 Area at Hanford during the Manhattan Project.
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.
C. P. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.