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.
Holeman worked at the 300 Area at Hanford during the Manhattan Project.
A. M. Hartman worked for the Roane-Anderson Company.
W. H. Hasse worked for the Tennessee Eastman Corporation at the Y-12 Plant.
