National Museum of Nuclear Science & History
T. A. LaRoe worked for the United States Engineer District Office.
Fred Hunt, a mechanical engineer who worked in the power department for DuPont during the late 1930s, arrived in Hanford in 1943.
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.