National Museum of Nuclear Science & History
Raphael Semmes worked for Clinton Laboratories at the X-10 Reactor.
Getrude Gunn worked for the Roane-Anderson Company.
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.
Philip C. McKenna was a laboratory assistant the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.