National Museum of Nuclear Science & History
Clark Prather worked for the Kellex Corporation at the K-25 Plant.
Marietta C. Moore was a technician in the Health Division at the University of Chicago Met Lab. She signed the Szilard petition.
Perry O. Williams served in the First Ordnance Squadron.
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.
