<page_title> List of mayors of Philadelphia </page_title> <section_title> Mayors </section_title> <table> <cell> Robert Wharton <col_header> Mayor </col_header> </cell> <cell> Robert Wharton <col_header> Mayor </col_header> </cell> <cell> Robert Wharton <col_header> Mayor </col_header> </cell> <cell> Robert Wharton <col_header> Mayor </col_header> </cell> <cell> Robert Wharton <col_header> Mayor </col_header> </cell> </table>
Robert Wharton was the longest-serving Mayor of Philadelphia.