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| YEAR | DATE | EVENT | KING | PRIME MINISTER | GENERAL GOVERNOR |
| 1910 | 31 may | Dominion | George V | Louis Botha | Herbert John Gladstone, Viscount Gladstone |
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| YEAR | DATE | EVENT | KING | PRIME MINISTER | GENERAL GOVERNOR |
| 1912 | 25 march | ||||
| 1914 | 8 september | Sydney Charles Buxton, Viscount Buxton | |||
| 1919 | 3 september | Jan Christian Smuts (I) | |||
| 1920 | 17 november | Sir James Rose-Innes | |||
| 1920 | 20 november | Prince Arthur Frederick Patrick Albert of Connaught | |||
| 1924 | 31 january | Augustus Alexander George Cambridge, Earl of Athlone | |||
| 1924 | 30 june | James Barry Munnik Hertzog |
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| YEAR | DATE | EVENT | KING | PRIME MINISTER | GENERAL GOVERNOR |
| 1928 | 31 may | ||||
| 1930 | 21 december | Jacob de Villiers | |||
| 1931 | 26 january | George Herbert Hyde Villiers, Earl of Clarendon | |||
| 1936 | 20 january | king Eduard VIII | |||
| 1936 | 12 december | king George VI | |||
| 1937 | 5 april | Sir Patrick Duncan | |||
| 1939 | 5 september | Jan Christian Smuts (II) | |||
| 1943 | 17 july | Nicolaas Jacobus de Wet | |||
| 1946 | 1 january | Gideon Brand van Zyl | |||
| 1948 | 4 june | Daniel François Malan | |||
| 1951 | 1 january | Ernest George Jansen | |||
| 1952 | 6 february | queen Elisabeth II | |||
| 1954 | 29 october | Nicolaas Christiaan Havenga | |||
| 1954 | 30 november | Johannes Gerhardus Strijdom | |||
| 1958 | 24 august | Charles Robberts Swart | |||
| 1958 | 3 september | Hendrik Frensch Verwoerd | |||
| 1959 | 26 november | Lucas Cornelius Steyn | |||
| 1959 | 7 december | Charles Robberts Swart |