National Museum of Nuclear Science & History
E. H. Frye worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. B. Caldwell worked for Clinton Laboratories at the X-10 Reactor.
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.
