National Museum of Nuclear Science & History
H. J. Peyton worked for the United States Engineer District Office.
R. A. Smith worked for the H. K. Ferguson Company.
Bottomley worked in the United States Engineer District Office.
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.
