Before the U.S. got involved in World War I, John Wm. Zeigler worked as a machine tool inspector at Cincinnati Planer Company, a machine tool manufacturer in Cincinnati’s Oakley neighborhood. This industry was vital to the American war effort and employed many Cincinnati residents. These companies manufactured machine tools that were capable of producing military trucks, tanks, ships and other weapons of war. Zeigler served as a member of a field artillery unit, returning to his machine tool career after the war.
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