William Clark Haines (10 January 1810 – 3 February 1866), where he graduated in medicine; he later practiced surgery for several years. In 1835 he married Mary Dugard, with whom he had nine children.
Haines migrated to the Port Phillip District (later Victoria) in 1841 and settled in the Geelong area. He farmed in the area as well as practising as a surgeon. He was appointed a member of the Victorian Legislative Council (then a partly elected, partly appointive body) in 1851, and in 1853 he was elected for district of Grant. He served as colonial secretary 1854–55. Politically, he represented the small farmers against the squatters who owned most of Victoria's land.
When Victoria gained full responsible government in 1855, Haines was leader of the Government. He was commissioned as Victoria's first premier and chief secretary on 28 November 1855 and served until 11 March 1857. Haines was again premier from April 1857 to March 1858. Haines then visited Europe for three years.