National Museum of Nuclear Science & History
Ralph Shank worked for the Tennessee Eastman Corporation at the Y-12 Plant.
L. W. Vitale served in the 390th Air Service Group.
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.
Marion Edward Cieslicki was an Polish American metallurgist who worked on the Manhattan Project from 1944 to 1946 at the University of Chicago and at Los Alamos.