National Museum of Nuclear Science & History
King worked for Stone and Webster Engineering Corporation.
John Roberts 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. E. Carroll worked for the Roane-Anderson Company.
Charles Helmers worked for the J.A. Jones Construction Company.
