National Museum of Nuclear Science & History
D. I. Nicholson worked for the United States Engineer District Office.
Leona Woods, later Leona Woods Marshall and Leona Marshall Libby, was perhaps the most well-known woman scientist working on the Manhattan Project.
John Butler worked for the H. K. Ferguson Company.
Hartley Rowe was an American industrial engineer. Rowe worked on the Panama Canal; for Lockwood Greene, an engineering firm; and for the United Fruit Company, where he rose to become vice president.
