National Museum of Nuclear Science & History
William Bryant worked for the Kellex Corporation at the K-25 Plant.
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.
John Arnold joined the Manhattan Project in 1943 when the MED tasked his employer, the Kellogg Corporation, with developing a special barrier for the gaseous diffusion plant in Oak Ridge.
