National Museum of Nuclear Science & History
R. I. Condit worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Sayers worked for Stone and Webster Engineering Corporation.
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Melvin S. Friedman was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
