National Museum of Nuclear Science & History
Hauser worked in the United States Engineer District Office.
Matheny worked in the 100 F 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.
Walter F. McCaleb served in the 393rd Bombardment Squadron.
