Jan de Klerk

As a member of the National Party, de Klerk served as interim State President for nine days following the retirement of Jacobus Johannes Fouché in 1975. Prior to this, he served as a Senator (1955–1975), Minister of Work and Public Works (1954–1958), Work and Mines (1958–1961), Home Affairs, Work and Immigration (1961), Home Affairs, Education and Arts and Sciences (1961–1966), Education, Arts and Sciences and Information (1966–1967) and National Education (1968–1969), and President of the Senate from 1969 to 1976. Provided by Wikipedia