National Museum of Nuclear Science & History
Walter Youngs, Jr. worked for the United States Engineer District Office.
Edward Grzywinski served in the 1395th Military Police Company, Aviation.
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.
Charles Levy was a first lieutenant in the 393rd Bombardment Squadron of the 509th Composite Group. He trained in Wendover, Utah, before leaving for Tinian Island.