National Museum of Nuclear Science & History
Ralph Graves worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. S. Staples worked for the Fercleve Corporation.
Estelle B. Lucas was a laboratory assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ruth Rhoades was an associate biologist at the Metallurgical Laboratory in Chicago during the Manhattan Project.