National Museum of Nuclear Science & History
R. W. Hamer worked for the Roane-Anderson Company.
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.
Nelson worked at the 200 West Area at Hanford during the Manhattan Project.
R. M. Thomas worked for the United States Engineer District Office.
John L. Kuranz (1921-1995) was an American engineer, physicist, and inventor. During the Manhattan Project, Kuranz was a member of the Special Engineer Detachment at the University of Chicago Met Lab.