National Museum of Nuclear Science & History
Ross Gunn was an American physicist and engineer who aided in the development of isotope separation methods during the Manhattan Project.
Curtis T. Barker served in the 1st Ordnance Squadron.
Anthony J. (“Tony”) Matz was a procurement officer at the University of Chicago Met Lab. He helped obtain, handle, and move many of the materials for Chicago Pile-1 and witnessed it going critical on December 2, 1942.
Fisher worked in the United States Engineer District Office.