National Museum of Nuclear Science & History
Gilbert N. Lewis (1875-1946) was an American physical chemist. His work with heavy water and resources were adapted by Ernest Lawrence in the development of the cyclotron.
George Tom Fike was a corporal in charge of recreation at Los Alamos. As part of the Army Recreation Department, he also operated the radio station at Los Alamos with Bob Porton.
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.