National Museum of Nuclear Science & History
Barr worked for Stone and Webster Engineering Corporation.
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.
D. R. Johnson worked for the Roane-Anderson Company.
Donald MacMillan arrived in Los Alamos on May 14, 1944. He was an avid figure skater, and worked for Los Alamos National Laboratory for many years.
