National Museum of Nuclear Science & History
Franklin MacGregor served as a second lieutenant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
Keene worked in the 200 East area at Hanford during the Manhattan Project.
Robinson worked for Stone and Webster Engineering Corporation.
Russell D. Carrigan served as a staff sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Some Punkins.