National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Frank Mason worked for 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.
Milo Bolstead worked as a part of Project Alberta.
Grover Davis served in the 1st Ordnance Squadron.