National Museum of Nuclear Science & History
J. C. Watkins worked for the United States Engineer District Office.
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.
A. L. Bladholm worked for the J.A. Jones Construction Company.
Brooks worked at Los Alamos during the Manhattan Project.
