National Museum of Nuclear Science & History
Harold Evans was an American chemist. Evans was born in 1907 in Brazil, Indiana. He received a B.S. and an M.
S. A. Gilgon worked for the Roane-Anderson Company.
Walt Simon, a chemist, was Hanford’s first Operations Manager. Before joining the Manhattan Project, he was plant manager at Wabash River Ordnance Works, a DuPont plant near Terre Haute, Indiana.