National Museum of Nuclear Science & History
A. M. Mulcahy worked for the Fercleve Corporation.
H. B. Marcum worked for the Union Carbide & Carbon Corporation.
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.
J. F. Villere worked for the United States Engineer District Office.