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.
W. H. Zimmer worked for the United States Engineer District Office.
Marvin H. Arnold, Jr. served in the 320th Troop Carrier Squadron.
T. H. Barker worked for the Tennessee Eastman Corporation at the Y-12 Plant.