National Museum of Nuclear Science & History
H. O. Arnold worked for the Kellex Corporation at the K-25 Plant.
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.
Fred Atkinson worked for the H. E. Anning Company.
Peer de Silva (1917-1978) was an American Army officer and a station chief for the CIA. De Silva was born in San Francisco.
