National Museum of Nuclear Science & History
Sayers worked for Stone and Webster Engineering Corporation.
John Hodgson worked for the United States Engineer District Office.
Paul W. Gruning served as a 2nd lieutenant in the 393rd Bombardment Squadron. He was the bombardier on the B-29 Jabit III on the Hiroshima mission.
Warren Johnson worked for Clinton Laboratories at the X-10 Reactor.
Greenhalgh worked in the United States Engineer District Office.