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.
L. M. D'Alessio served in the 390th Air Service Group.
D. V. Zehner worked for the Tennessee Eastman Corporation at the Y-12 Plant.
