John H. Cryder Jr.

John G. Winston

Walter Simon

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.

C. E. Brisco

Brisco worked at the 300 Area at Hanford during the Manhattan Project. 

Harry A. Prosceno

Harry Prosceno worked for the United States Engineer District Office.