National Museum of Nuclear Science & History
Alfred Hanson (1914-2005) was an American physicist. Alfred Hanson came to the Manhattan Project from the University of Wisconsin where he had recently completed his doctoral work, studying the Van de Graaf “long tank” accelerator.
George worked at Los Alamos during the Manhattan Project.
Robert Leroy Platzman was a chemist at the University of Chicago Metallurgical Laboratory during World War II.