National Museum of Nuclear Science & History
R. L. Thornton worked for the Tennessee Eastman Corporation at the Y-12 Plant.
George Koval was an American chemical engineer and one of the most important Soviet spies of the 20th century.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
Harold E. Young was a staff worker at Los Alamos during the Manhattan Project.
Abraham L. Longfield was a Procurement and Property Officer for the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
