National Museum of Nuclear Science & History
Ed Hall worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Ledbetter worked in the 200 East Area at Hanford during the Manhattan Project.
Norman Harry Nachtrieb was an American chemist who worked on the Manhattan Project at the University of Chicago and Los Alamos.
Robert E. Smithson served as a master sergeant in the the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Strange Cargo.
