National Museum of Nuclear Science & History
Ralph Lawson worked for the United States Engineer District Office.
Parsons worked in the 300 Area at Hanford during the Manhattan Project.
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.
H. A. Smith worked for the J.A. Jones Construction Company.
