<Tr> <Td>--</Td> <Td> Jozua François Naudé (1889--1969) </Td> <Td> </Td> <Td> 1 June 1967 </Td> <Td> 10 April 1968 </Td> <Td>--</Td> <Td> </Td> <Td> National Party </Td> <Td> Vorster </Td> </Tr> <Tr> <Th> </Th> <Th> Jacobus Johannes Fouché (1898--1980) </Th> <Td> </Td> <Td> 10 April 1968 </Td> <Td> 9 April 1975 </Td> <Td>--</Td> <Td> </Td> <Td> National Party </Td> <Td> Vorster </Td> </Tr> <Tr> <Td>--</Td> <Td> Johannes de Klerk (1903--1979) </Td> <Td> </Td> <Td> 9 April 1975 </Td> <Td> 19 April 1975 </Td> <Td>--</Td> <Td> </Td> <Td> National Party </Td> <Td> Vorster </Td> </Tr> <Tr> <Th> </Th> <Th> Nico Diederichs (1903--1978) </Th> <Td> </Td> <Td> 19 April 1975 </Td> <Td> 21 August 1978 (died in office .) </Td> <Td>--</Td> <Td> </Td> <Td> National Party </Td> <Td> Vorster </Td> </Tr>

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