National Museum of Nuclear Science & History
Lonnie B. Hancock served in the 393rd Bombardment Squadron.
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.
J. C. Freer worked for the Roane-Anderson Company.
Katherine Gnjec was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
