<page_title> Deputy Prime Minister of Australia </page_title> <section_title> Informal Deputy Prime Ministers </section_title> <table> <cell> John McEwen <col_header> Name </col_header> <row_header>  </row_header> </cell> <cell> Country Party Leader 1958–71 <col_header> Political party and position </col_header> <row_header>  </row_header> </cell> <cell> Minister for Trade and Industry Acting Prime Minister June–July 1965 <col_header> Ministerial Offices </col_header> <row_header>  </row_header> </cell> <cell> Harold Holt <col_header> Name </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> <col_header>  </col_header> </cell> </table>
John McEwen of the Country Party was sworn in as interim Prime Minister following Prime Minister Harold Holt.