Hunter was born in Wellington in 1859. He was a son of George Hunter, and a grandson of George Hunter, the first Mayor of Wellington. He worked on his father's farm in Te Aro, which is now part of the Wellington central business district. The central part of the land is now covered by Upper Dixon Street, Percival Street, and Macdonald Crescent. His father had a further farm in Porangahau in the Hawke's Bay Region, which he took up in circa 1854. Through purchasing neighbouring land, he increased the size to. As his father lived in Wellington, the Porangahau farm was run by his father's brothers David and William. Hunter junior took over the runningof the farm from his uncles in 1877, and owned it in partnership with his brother Paul. Hunter lived at Porangahau for most of his life. The brothers bred Thoroughbreds at their farm, which have won many prominent races. One of his most famous horses was Cynisca, which won three consecutive Wellington Cups. Like his father, Hunter was prominent in the administration of horse racing, and he submitted the Gaming Amendment Bill to Parliament. The brothers' partnership ended in 1908, with both taking half the land, George Hunter keeping the portion with the homestead.
Political career
Hunter was a member of Patangata County for over 30 years. He contested the electorate in the, but was beaten by William Cowper Smith. Smith had previously represented Waipawa from to 1887. In the, Hunter was defeated by Charles Hall of the Liberal Party. In the, Hunter defeated Hall, but lost to him in the subsequent election. Hunter was again defeated by Hall in the and s. Hall retired at the, and Hunter beat Albert Jull of the Liberal Party. Hunter continued to serve in the parliament until his death in 1930, beating Jull in and, John Joshua Langridge in, William Ashton Chambers in, and Ernest Albert Goodger and Douglas Barrington Kent in. Hunter's death on 20 August 1930 triggered the in the Waipawa electorate, which was won by Albert Jull.
Philanthropy
After World War I, Hunter gave land valued at NZ£30,000 for the settlement of returned soldiers.
Has rendered valuable assistance in connection with the settlement of returned soldiers.
He fell ill during the first session of the 23rd Parliament in 1929, and was in indifferent health thereafter. He returned to Wellington for the second session in 1930 and died in Wellington on 20 August 1930, survived by his wife and one daughter. The funeral service was held at St Peter's Church in Wellington. The body was then taken by train to Waipukurau. His daughter died in 1999.