National Museum of Nuclear Science & History
Hazel Williams worked for the United States Engineer District Office.
Jimmie F. Lee served in the 393rd Bombardment Squadron.
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.
William Stewart was an engineer in the Special Engineering Detachment at Los Alamos, New Mexico. Specifically, Stewart worked in “Project Trinity” under the leadership of George Kistiakowsky and Kenneth Bainbridge.
