National Museum of Nuclear Science & History
Sir Rudolf Peierls (1907-1995) was a German-born British physicist. In March 1940, Peierls and fellow collegue Otto Frisch co-authored the Frisch-Peierls memorandum, the first technical exposition of a practical atomic weapon.
Melvin L. Dietrich worked as a welder and electrician in a number of facilities across the Oak Ridge, Tennessee facility.
C. H. Saathoff worked for the United States Engineer District Office.
Reilly worked for Stone and Webster Engineering Corporation.