National Museum of Nuclear Science & History
Henry Wigen worked for the United States Engineer District Office.
Paul W. Gruning served as a 2nd lieutenant in the 393rd Bombardment Squadron. He was the bombardier on the B-29 Jabit III on the Hiroshima mission.
Gale Kenney was a member of the Special Engineering Detachment and worked in the K-25 Plant in Oak Ridge, Tennessee.