National Museum of Nuclear Science & History
Charles Mayette worked for Hanley & Company.
Fred VanWyck moved to Richland with his wife Diana in 1944 from Charleston, West Virginia, where Van worked at DuPont's Belle Plant as a technician.
Harry Palevsky (1919-1990) was an American engineer. A Chicago native, Palevsky began his work on the Manhattan Project at the University of Chicago Metallurgical Laboratory shortly after finishing his undergraduate career at Northwestern University.
Helen Thomson was a techinician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.