National Museum of Nuclear Science & History
A. A. Nickman worked for the Kellex Corporation at the K-25 Plant.
Harold Koch was an electrical engineer at Oak Ridge, Tennessee during the Manhattan Project.
W. B. Savage worked for the H. K. Ferguson Company.
Charles J. Spiegl was a civilian scientist employed by the Manhattan Project. He was involved in radiation toxicology, studying the effects of radiation on animals at the Trinity Site near Alamogordo, New Mexico.
R. M. Pylant worked for the Tennessee Eastman Corporation at the Y-12 Plant.