John E. Phipps

F. G. Reichle

F. G. Reichle 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.

Glenn Hupp

Glenn Hupp worked for the Roane-Anderson Company.

A. B. Cort