National Museum of Nuclear Science & History
E. S. Ethridge worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John C. Pennock attended Cornell University, where he studied engineering. He was a member of the Special Engineer Detachment at Oak Ridge, where he worked as a technical engineer at the K-25 Plant.
Cleo E. Harter served as a sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Strange Cargo.