National Museum of Nuclear Science & History
W. O. Watson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Samuel McNeight was a DuPont employee member who was a part of the team tasked with constructing the B Reactor at Hanford.
John Henry Manley (1907-1990) was an American physicist. Manley worked on the Manhattan Project almost from its beginning, starting at the Metallurgical Lab at the University of Chicago.
Hoff worked at the 300 Area at Hanford during the Manhattan Project.