Leader of the Government in the Senate (Australia)
The current Leader of the Government in the Senate is Mathias Cormann. The current Deputy Leader of the Government in the Senate is Simon Birmingham, who was appointed on the same date following the resignation of Mitch Fifield.
Father of the Australian Senate
The only Father of the Senate with broken service but whose latter period of continuous service was sufficiently long to qualify was Sir Walter Cooper. Annabelle Rankin was a joint Father of the Senate, from 1 July 1968 to 24 May 1971, the only female to achieve that status. The possibility of a woman becoming a longest-serving senator was not provided for in "Australian Senate Practice", and there has still been no move to amend the text or title to this day.