National Museum of Nuclear Science & History
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.
McCook worked in the 200 West Area at Hanford during the Manhattan Project.
Marie Sperling was a staff worker at Los Alamos during the Manhattan Project.
