William R. Merkle

W.E. Spicer

Gordon Fielden

Gordon Fielden worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Jacob Epting

Jacob Epting worked as a carpenter in Oak Ridge, TN from November 1942 to October 1943. While Epting assumed he was building a hospital, he was never formally told about the project he was working on.

M. R. Pierce

M. R. Pierce worked for the Kellex Corporation at the K-25 Plant.