National Museum of Nuclear Science & History
Abel DeHaan was a civilian chemist that worked at the Y-12 Complex in Oak Ridge, TN. DeHaan was hired for the Manhattan Project by Glenn Seaborg while in his last year of a B.
A. Miller served in the 509th Headquarters and Base Services Squadron.
Ralph Gates (1925-2018) was a chemical and electrical engineer who was recruited to the Manhattan Project as a part of the Special Engineer Detachment in early 1945.
Belcher worked in the United States Engineer District Office.