National Museum of Nuclear Science & History
Ernest Capell worked for the Poe Piping & Heating Company.
Helena Calloway was a laboratory assistant in the Chemistry Division of 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.
Stephen Lawroski was an American chemical engineer who worked on the Manhattan Project at the University of Chicago’s Metallurgical Laboratory from 1944-1946.