National Museum of Nuclear Science & History
Johnstone worked at the 300 Area at Hanford during the Manhattan Project.
Clarence E. Britt served as a corporal in the 393rd Bombardment Squadron. He was the assistant engineer/scanner regularly assigned to the B-29 Next Objective.
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.
H. M. Bryans worked for the Tennessee Eastman Corporation at the Y-12 Plant.