<page_title> 55th United States Congress </page_title> <section_title> Senate </section_title> <table> <cell> John Sherman (R) <col_header> Vacator </col_header> </cell> <cell> Resigned March 4, 1897 to become U.S. Secretary of State. Elected to fill remainder of term. <col_header> Reason for vacancy </col_header> </cell> <cell> Mark Hanna (R) <col_header> Subsequent </col_header> </cell> <cell> March 5, 1897 <col_header> Date of successor's installation </col_header> </cell> </table>
In the 55th United States Congress, John Sherman (R) served until March 4, 1897 and was succeeded by Mark Hanna (R) on March 5, 1897.