National Museum of Nuclear Science & History
D. M. Ellett is a mechanical engineer who joined the Manhattan Project after the end of World War II.
James B. Snodgrass was a member of the Mounted Military Police working on site security at Los Alamos and the Trinity test site.
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.
William S. Johnston was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
