National Museum of Nuclear Science & History
Before the war Oswald Greager was a high-ranking DuPont chemist. He took leave from DuPont in 1942 to join the Army's Chemical Warfare Service.
Gibson worked at the 300 Area at Hanford during the Manhattan Project.
H. G. Singleton worked for the Roane-Anderson Company.
Harold M. Spurling served in the 320th Troop Carrier Squadron.
