National Museum of Nuclear Science & History
R. B. Briggs worked for Clinton Laboratories at the X-10 Reactor.
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.
Homer M. O’Callaghan served in the 1st Ordnance Squadron.