National Museum of Nuclear Science & History
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.
Frederick Trapnell was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
T. F. Walsh worked for the United States Engineer District Office.
A. J. Hendricks worked for the Tennessee Eastman Corporation at the Y-12 Plant.
