<page_title> List of lieutenant governors of Ontario </page_title> <section_title> Lieutenant Governors of Ontario, 1867–present </section_title> <table> <cell> 12 <col_header> # </col_header> </cell> <cell> Lionel Herbert Clarke <col_header> Name </col_header> </cell> <cell> 1921 <col_header> Governor until </col_header> </cell> </table>
Lionel Herbert Clarke was the 12th Lieutenant Governor of Ontario till 1921.