National Museum of Nuclear Science & History
Colonel James Marshall (1897-1977) was district engineer of the Manhattan Engineer District. Marshall earned a position in the Army Corps of Engineers during his years at West Point.
F. A. Wallin worked for the Kellex Corporation at the K-25 Plant.
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.