National Museum of Nuclear Science & History
L. E. Combs worked for the Roane-Anderson Company.
E. G. Olsen worked for the United States Engineer District Office.
R. M. Van Petten worked for the Kellex Corporation at the K-25 Plant.
Joyce M. Hopkins was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
