Table:
text: 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_
23. SA Sir Richard Butler (1885–1966) KCMG Liberal & Country League 18 April 1933 5 November 1938 8 years, 210 days
24. VIC John Cain II (1931– ) Australian Labor Party 8 April 1982 10 August 1990 8years, 124days
25. WA Richard Court (1947– ) AC Liberal Party of Australia 16 February 1993 10 February 2001 7years, 360days
26. WA Sir James Mitchell (1866–1951) GCMG Nationalist Party of Australia 17 May 1919 16 April 1924 7 years, 335 days
26. WA Sir James Mitchell (1866–1951) GCMG Nationalist Party of Australia 24 April 1930 24 April 1933 7 years, 335 days
27. WA Sir Charles Court (1911–2007) AK KCMG OBE Liberal Party of Australia 8 April 1974 25 January 1982 7years, 292days

Question: In the list of Australian heads of government by tenure, what is the lowest rank for the Prime Minister who took office on 17 May 1919 and served 7 years, 335 days?