<page_title> List of ambassadors of the United States to Canada </page_title> <table> <cell> Richard B. Wigglesworth <col_header> Ambassador </col_header> </cell> <cell> December 15, 1958 <col_header> Took office </col_header> </cell> <cell> October 19, 1960 <col_header> Left office </col_header> </cell> </table>
Richard B. Wigglesworth served as United States Ambassador to Canada from December 15, 1958, until October 1960.