National Museum of Nuclear Science & History
Smith worked at the 200 West Area at Hanford during the Manhattan Project.
Macguire worked in the 300 Area at Hanford during the Manhattan Project.
Tracy worked for Stone and Webster Engineering Corporation.
Arnold E. Sleipnes served as a techical sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.