National Museum of Nuclear Science & History
J. B. Rice worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Charles Mallon worked for the Kellex Corporation at the K-25 Plant.
Michael Cefola was an American chemist and a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Margaret M. Emmerson was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.