National Museum of Nuclear Science & History
Brent worked at the 200 West at Hanford during the Manhattan Project.
Barnes worked in the United States Engineer District Office.
F. A. Lehmann worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.