National Museum of Nuclear Science & History
Sam Sandoval was a staff worker at Los Alamos 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.
R. L. Plowden worked for the J.A. Jones Construction Company.
S. C. Dobbs worked for the Combustion Engineering Company.
