National Museum of Nuclear Science & History
Robert Hargraves worked for the H. K. Ferguson Company.
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.
Harris worked in the United States Engineer District Office.
Hayes worked at the 300 Area at Hanford during the Manhattan Project.
