Wilfred Fritz

Dale Critselous

Critselous worked Stone and Webster Engineering Corporation.

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.

R.B. Hardin

Hardin worked in the United States Engineer District Office.

Paul V. Branum