Education
Born in North Adelaide, McLachlan was educated at Saint Peter"s College, Adelaide, where he first displayed his cricketing prowess, and Jesus College at the University of Cambridge.
Born in North Adelaide, McLachlan was educated at Saint Peter"s College, Adelaide, where he first displayed his cricketing prowess, and Jesus College at the University of Cambridge.
He played 72 matches of first-class cricket for Cambridge University and South Australia between 1956 and 1964, scoring 3743 runs at an average of 31.72, with 9 centuries. His business career includes managing director of Nangwarry Pastoral Company Proprietary Limited., deputy chairman of Société Anonyme Brewing Proprietary
Limited (1983–1990), director of Elders IXL Limited.
(1980–1990) and president of the National Farmers Federation (1984–1988). He was a long term president (till 2014) of the South Australian Cricket Association.
McLachlan was the member for Barker from 1990 until 1998 when he retired. He was Federal Minister for Defence from 1996 to 1998.
There was an earlier attempt to get McLachlan into Parliament in the lead-up to the 1987 election.
According to John Howard, then Opposition Leader, stated in 2014 that Liberal Member of Parliament Alexander Downer had offered to stand aside from his seat of Mayo in favour of McLachlan but the offer was declined. Howard later reneged on this deal, leading to controversy and public bickering between Prime Minister Howard and Treasurer Costello. The revelation was made by McLachlan himself and Howard later said in The Howard Years documentary series that he had decided to handover the Prime Ministership to Costello in 2006 but changed his mind as a result of the revelation of the deal.
McLachlan therefore cost Costello his final opportunity to become Prime Minister.