National Museum of Nuclear Science & History
John Russell worked for the United States Engineer District Office.
J. E. Metzger worked for the Comstock-Bryant Electric 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.
W. P. Latka worked for the Edenfield Electric Company.
