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All 39 seats in the South Australian House of Assembly 20 seats were needed for a majority | ||||||||||||||||||||||||||||||||||
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State elections were held in South Australia on 7 March 1959. All 39 seats in the South Australian House of Assembly were up for election. The incumbent Liberal and Country League led by Premier of South Australia Thomas Playford IV defeated the Australian Labor Party led by Leader of the Opposition Mick O'Halloran.[1][2]