National Museum of Nuclear Science & History
F. A. Wallin worked for the Kellex Corporation at the K-25 Plant.
Frank Harrison worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Robert S. Coles was a research associate at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
