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| 1900 | Strauss, Jacob Gideon Nel |  |
| Birth of Jacob Gideon Nel Strauss |
| 1923 | Strauss, Jacob Gideon Nel | |
| Appointed Private Secretary to Smuts |
| 1933 | Hertzog, James | |
| Pretoria Africa Forms the United Party with Smuts so his Native Bill can be passed |
| 1939 | Strauss, Jacob Gideon Nel | |
| Appointed Minister for Agriculture & Forestry |
| 1947 | Villiers Graaff, David Pieter de | |
| Unsuccesfully stands for election |
| 1948 | Villiers Graaff, David Pieter de | |
| Succesfully stands for election |
| 1951 | Villiers Graaff, David Pieter de | |
| Cape Africa Appointed Party Leader for the United Party in the Cape |
| 1956 | Villiers Graaff, David Pieter de | |
| Appointed Party Leader of the United Party |
| 1961 | Villiers Graaff, David Pieter de | |
| Only 1 of the 12 party members of the House of Assembly retain their seat |
| 1962 | Wet, Quartus de | |
| 9th Oct Pretoria Africa Opening day of the Nelson Mandela trial, the Rivonia Trial, de Wet is presiding Judge |
| 1962 | Yutar, Percy | |
| 9th Oct Pretoria Africa Opening day of the Nelson Mandela trial, the Rivonia Trial, State Prosecutor |
| 1963 | Wet, Quartus de | |
| 29th Oct Pretoria Africa The indictments against Mandela are quashed but Mandela is arrested again in Court |
| Dec Pretoria Africa Mandela & Sisulu are accused of 222 acts of sabotage |
| 1977 | Villiers Graaff, David Pieter de | |
| 28th June Resigns as opposition leader |
| 28th June Resigns as party leader |
