National Museum of Nuclear Science & History
Gordon Waters was a staff worker at Los Alamos during the Manhattan Project.
Raymond. J. Bosnak was an electrical engineer at Chicago when he enlisted in the Army. He was assigned to the Special Engineer Detachment at Los Alamos.
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.
Howard Parsons was an American physicist. Parsons was born in Chicago in 1920. He receieved a B.S. from the University of Chicago, and shortly afterwards was hired to work on the Manhattan Project as a research assistant at the Chicago Met Lab.