National Museum of Nuclear Science & History
Victor Munroe Morrel worked at the X-10 Graphite Reactor at Oak Ridge, TN during the Manhattan Project.
Ernest C. Lawrence was a millwright at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.