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.
John Tucker worked for the United States Engineer District Office.
John C. Hansen served as a Master Sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Laggin’ Dragon.
Brewer was at Los Alamos during the Manhattan Project.
