National Museum of Nuclear Science & History
J. Powell worked for the Union Carbide & Carbon Corporation.
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.
A. E. Case worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Henry Faul was a geologist working on Enrico Fermi's team at the University of Chicago. He was responsible for prospecting uranium ore in Colorado and Utah.
L. L. Lee worked for the United States Engineer District Office.
