Bell was born in Nelson, the eldest son of Sir Dillon Bell. His mother was Margaret Hort. Arthur Bell was a younger brother. He attended Auckland Grammar School and Otago Boys' High School. At Otago Boys he was the Dux. After finishing high school, he travelled to England where he attended St John's College, Cambridge, receiving a BA in 1873. On returning to New Zealand, he began practising law in Wellington, being involved in Bell, Gully, MacKenzie and Evans. As a youth in the 1870s, he also played two first-class cricket matches for Wellington. Bell served as Crown Solicitor in Wellington from 1878 to 1890, and from 1902 to 1910. He was a prominent member of both the local and national law societies. He served as the latter's president from 1901 to 1918. He married Caroline Robinson on 24 April 1878 at St John's Church in Christchurch. She was the third daughter of William Robinson. They had four daughters and four sons. His son William Henry Dillon Bell was a Member of Parliament, but resigned and volunteered for service in World War I. He was killed in 1917. Another son Cheviot Wellington Dillon Bell was appointed to the Legislative Council as a member of the suicide squad by the First National Government on 27 July 1950 to vote for the abolition of the council, so served to 31 December 1950. The two children of his brother Alfred, Brenda and Frank Bell, became notable radio pioneers.
Political career
His political career began with being elected Mayor of Wellington in 1891, 1892 and 1896. In his first general election in, he was defeated running as an independent for the electorate. He was narrowly defeated by William McLean in an by-election by 3388 votes to 3245. He finally entered Parliament in the, serving for one term. In 1912, the Reform Party came to power, and on 10 July 1912 Bell was appointed to the Legislative Council. He became Minister of Internal Affairs, and Minister of Immigration. He was Attorney-General. He was the first Commissioner of State Forests, and from 1923 he would also serve as the Minister of External Affairs. He represented New Zealand at the League of Nations in 1922. He would also attend the allied conferences at Genoa and the Hague. Having been appointed Knight Commander on 3 June 1915, on 1 January 1923 he was appointed a Knight Grand Cross of the Order of St Michael and St George and was appointed to the Privy Council on 1 February 1926.
On returning to New Zealand, Bell became Acting Prime Minister while William Massey was in London. Massey's health began to fail, and Bell took over most of his roles. He officially became prime minister on 14 May 1925 after Massey's death on 10 May. He served as prime minister for the next 16 days. Bell declined the party's offer to become Prime Minister and was replaced by Gordon Coates. After giving up his portfolios in 1926, he returned to the League of Nations with Coates. In 1935, he was awarded the King George V Silver Jubilee Medal. His wife, Caroline, died in Wellington on 8 September 1935. Bell died in Wellington on 13 March 1936.
