National Museum of Nuclear Science & History
Hall worked in the United States Engineer District Office.
Nathan Safferstein (1921-2013) was an American counterintelligence agent during the Manhattan Project.
William R. Purnell (1886-1955) was a Rear Admiral in the US Navy and served as the Navy liaison on the Military Policy Committee for the Manhattan Project.
Olga (Giacchetti) Fineman was a technical assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
