Dr David Oliver Tonkin AO was the 38th Premier of South Australia, serving fromSeptember 1979 toNovember 1982. He was elected to the House of Assembly seat of Bragg at the 1970 election, serving until 1983. He became the leader of the South Australian Division of the Liberal Party of Australia in 1975, replacing Bruce Eastick. Initially leading the party to defeat at the 1977 election against the Don Dunstan Labor government, his party won the 1979 election against the Des Corcoran Labor government. Following the 1980 Norwood byelection the Tonkin government was reduced to a oneseat majority. His governments policy approach combined economic conservatism with social progressivism. The Tonkin Liberal government was defeated after one term at the 1982 election by Labor led by John Bannon.
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Source: Wikipedia