List of Australian heads of government by time in office Historical premiers Historical premiers

| Rank_ | State_ | Premier_ | Party_ | Assumed_office_ | Left_office_ | TOTAL_Time_in_office_ |
|---|---|---|---|---|---|---|
| 35. | SA | Archibald Peake (1859–1920) | Liberal & Democratic Union | 5 June 1909 | 3 June 1910 | 6 years, 312 days |
| 35. | SA | Archibald Peake (1859–1920) | Liberal Union | 17 February 1912 | 3 April 1915 | 6 years, 312 days |
| 35. | SA | Archibald Peake (1859–1920) | Liberal Union | 14 July 1917 | 8 April 1920 | 6 years, 312 days |
| 36. | NSW | William Holman (1871–1934) | Australian Labor Party | 30 June 1913 | 15 November 1916 | 6years, 287days |
| 36. | NSW | William Holman (1871–1934) | Nationalist Party of Australia | 15 November 1916 | 12 April 1920 | 6years, 287days |
| 37. | TAS | Sir Walter Lee (1874–1963) KCMG | Commonwealth Liberal Party | 15 April 1916 | 12 August 1922 | 6 years, 191 days |