National Museum of Nuclear Science & History
J. N. Holt worked for the United States Engineer District Office.
Aquilla Parsons was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Stanley Hall (1924 – present) is an American laboratory technician and scientist who worked on the Manhattan Project at Los Alamos, New Mexico.
J. A. Vavro served in the 509th Headquarters.