South Australian National Party
First contesting the 1965 state election, the party has held two South Australian House of Assembly seats at alternating periods: Peter Blacker (1973–1993) in Flinders; and Karlene Maywald (1997–2010) in Chaffey.In August 1964, T. G. Clark announced the formation of the "South Australian Country Party" as a fully autonomous organisation.[5] Karlene Maywald was the MP for the Riverland seat of Chaffey from 1997 and the SA National Party parliamentary leader.and signed an agreement with Mike Rann and the Labor Party for reserving the right to not vote with the government, whilst at the same time becoming the Minister for the River Murray amongst other portfolios to the benefit of her constituency.The SA Nationals have never been part of a formal Coalition with the Liberals, unlike their counterparts in most of the rest of Australia.