National Museum of Nuclear Science & History
R. Y. Blackwell worked for the Fercleve Corporation.
James J. Wainscott served in the 393rd Bombardment Squadron.
Flonnie Sloan worked in Building 9201 in the Y-12 plant at Oak Ridge, Tennessee from 1943 to 1945.
Williamson worked at the 300 Area at Hanford during the Manhattan Project.
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.