<page_title> List of mayors of Calgary </page_title> <table> <cell> 20 <col_header>  </col_header> </cell> <cell> Robert Colin Marshall <col_header> Mayor </col_header> </cell> <cell> January 2, 1919 <col_header> Term Began </col_header> </cell> <cell> January 3, 1921 <col_header> Term Ended </col_header> </cell> </table>
Robert Colin Marshall was the 20th mayor of Calgary, Alberta from 1919 to 1921.