National Museum of Nuclear Science & History
S. L. Ashburn worked for the Roane-Anderson Company.
Fred R. Williams worked for Clinton Laboratories at the X-10 Reactor.
Elgin Hall 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.
Jack Holmes worked for the United States Engineer District Office.