# Name
(Birth–Death)
Picture Took office Left office Monarch Prime Minister
1 The Viscount Gladstone
(1854–1930)
Herbert John Gladstone.jpg 31 May 1910 8 September 1914 George V Botha
2 The Viscount Buxton
(1853–1934)
Sydney Charles Buxton.png 8 September 1914 17 November 1920
3 HRH Prince Arthur of Connaught
(1883–1938)
Prince Arthur of Connaught colour.jpg 17 November 1920 21 January 1924 Smuts
4 The Earl of Athlone
(1874–1957)
Earlofathlone.jpg 21 January 1924 26 January 1931
5 The Earl of Clarendon
(1877–1955)
George Herbert Hyde Villiers.jpg 26 January 1931 5 April 1937 Hertzog
6 Sir Patrick Duncan
(1870–1943)
Patrick Duncan.jpg 5 April 1937 17 July 1943 George VI
Nicolaas Jacobus de Wet
(1873–1960)
(Officer Administering the Government)
Nicolaas de Wet.jpg 17 July 1943 1 January 1946 Smuts
7 Gideon Brand van Zyl
(1873–1956)
Gideon Brand van Zyl.jpg 1 January 1946 1 January 1951
8 Ernest George Jansen
(1881–1959)
EG Jansen 1949.jpg 1 January 1951 25 November 1959 Malan
Lucas Cornelius Steyn
(1903–1976)
(Officer Administering the Government)
Coat of Arms of South Africa (1932-2000).svg 26 November 1959 11 December 1959 Elizabeth II Verwoerd
9 Charles Robberts Swart
(1894–1982)
CR Swart 1960.jpg 11 December 1959 30 April 1961
Lucas Cornelius Steyn
(1903–1976)
(Officer Administering the Government)
Coat of Arms of South Africa (1932-2000).svg 30 April 1961 31 May 1961