<page_title> List of longest-serving members of the Parliament of Australia </page_title> <section_title> Chronological list </section_title> <table> <cell> 1 July 1968 <col_header> From </col_header> </cell> <cell> 29 September 1969 <col_header> To </col_header> </cell> <cell> Bert Hendrickson Justin O'Byrne Dame Annabelle Rankin <col_header> Overall </col_header> </cell> <cell> 30 September 1969 <col_header> From </col_header> </cell> <cell> 1 February 1971 <col_header> To </col_header> </cell> </table>
From 1968 to 1971, Bert Hendrickson was the father of the Senate.