National Museum of Nuclear Science & History
Leo Safranski was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.
James C. Hobbs was an American inventor and engineer who created a key part of the valves used in the K-25 gaseous diffusion plant in Oak Ridge, TN.
Krank Suazo was a staff worker at Los Alamos during the Manhattan Project.
Robert P. Matthews worked as a member of Project Alberta, the team that transported and assembled the Fat Man and Little Boy atomic bombs.
George Meacham worked for the Tennessee Eastman Corporation at the Y-12 Plant.