National Museum of Nuclear Science & History
Magdaline Penny worked for the United States Engineer District Office.
Carroll Villincs was a guard at the Chicago Met Lab during the Manhattan Project.
E. A. McCaskill worked for the United States Engineer District Office.
Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Jane Hamilton Hall (1915-1981) was an American physicist. Shortly after receiving her Ph.D. in physics from the University of Chicago in 1942, Hall became a research assistant at the Chicago Metallurgical Laboratory.
