National Museum of Nuclear Science & History
Major Frank P. Erichsen worked at 100-F Area at Hanford during the Manhattan Project. One of the leading U.
Monson worked in the 100 D Area at Hanford during the Manhattan Project.
Bergan worked in the United States Engineer District Office.
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.