National Museum of Nuclear Science & History
Joseph Ryan was a staff worker at Los Alamos during the Manhattan Project.
E. Vincens worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
