National Museum of Nuclear Science & History
Harry Bernstein worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. L. Flagg worked for the Watson-Flagg Engineering Company.
Willard Clark was born in Boston in 1910, but grew up in Buenos Aires, Argentina, where his father was President of the General Motors Argentina Branch.
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.