National Museum of Nuclear Science & History
R. W. Addington worked for the J.A. Jones Construction Company.
Ruth A. Casler was a lab technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.
Doyel Stephenson worked for the J.A. Jones Construction Company.