National Museum of Nuclear Science & History
G. E. Freeman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Wilson worked at the 300 Area at Hanford during the Manhattan Project.
Copeland worked in the United States Engineer District Office.
William Karush (1917-1997) was an American mathematician and physicist. After earning his Ph.D. from the University of Chicago in 1942, Karush worked briefly at the Carnegie Institution of Washington before returning to Chicago to join the Manhattan Project.