National Museum of Nuclear Science & History
Eleanor Caldwell was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
I. A. Butcher worked for the Kellex Corporation at the K-25 Plant.
A. D. Caley worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Frank R. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
