National Museum of Nuclear Science & History
Lorraine Thurman was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Hays worked in the United States Engineer District Office
Olga M. Klicek was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
D. M. Black worked for Clinton Laboratories at the X-10 Reactor.