National Museum of Nuclear Science & History
R. E. Graves worked for the Tennessee Eastman Corporation at the Y-12 Plant.
A. C. Smythe worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Niels Thude was a staff worker at Los Alamos during the Manhattan Project.
As Secretary of War under Presidents Franklin D. Roosevelt and Harry Truman, Henry L. Stimson (1867-1950) oversaw the entire Manhattan Project, and was responsible for appointing key project leaders and authorizing project construction sites across the US.