National Museum of Nuclear Science & History
Charles Williams worked for the United States Engineer District Office. He was a “very present help in time of trouble” in the early history of Oak Ridge, with his position in charge of warehousing and property he was one of the men who knew where everything was.
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
Helene Stark was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.