National Museum of Nuclear Science & History
John Leahy 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.
Leo Brewer (1919-2005) was an American chemist. Brewer finished his undergraduate degree at CalTech in 1940.
William Moore worked for the Roane-Anderson Company.
