Archibald Hunter, born a twin, was the son of an Archibald Hunter, a London businessman and Mary Jane Graham. Having chosen not to follow his father's business routes, Hunter began military education in Glasgow, and then at the Royal Military College Sandhurst. In 1875, the nineteen-year-old sub lieutenant joined the 4th Regiment.
Between 1884 and 1885, Hunter joined the Gordon Relief Expedition, which sought to rescue Major General Charles George Gordon from his Mahdi captives. The expedition was, however, too late; Gordon had been killed two days before their arrival. During the time in which the Mahdi's were being suppressed, Hunter saw much front line action. He led a brigade under the command of Major General Grenfell in Suakin. He was wounded on this mission. He was appointed Governor of Dongola Province in the Sudan and Commandant of the Frontier Field Force in 1895. In 1896, he joined the Anglo-Egyptian Nile Expeditionary Force under Lord Kitchener, the Sirdar, Hunter commanding the Egyptian Army Division during the reconquest of the Sudan, which culminated in the Battle of Omdurmanin September 1898. He was made Governor of Omdurman in Sudan in 1899, and was appointed in command of the Quetta district in India later the same year.
At the outbreak of the Second Boer War in October 1899, Major General Hunter was on the staff of Sir George White's Natal Field Force during the Battle of Ladysmith in Natal and the subsequent 118-day siege. On 8 December he successfully led a small raid against one of the Boers' Creusot "Long Tom" guns and a howitzer which they disabled with cotton charges. The town was relieved on 1 March 1900 and Hunter was promoted to lieutenant general on 6 March and posted as General Officer Commanding 10th Division. The 10th Division were sent to join Lord Roberts' army on the western front of South Africa which was now camped at the captured Orange Free State capital Bloemfontein. Hunter led them in the march on Pretoria, crossing into the Transvaal Republic on 3 May. Once Pretoria was captured though Robert's army had to deal with Guerrilla warfare and General Hunter was sent south again as overall commander of five columns that converged on the Free State army camped at Brandwater Basin, forcing the surrender of 4,314 Boers led by Marthinus Prinsloo. It was the largest number of Boers captured in the war so far and cost very little in British casualties; only 33 dead and 242 wounded.
Archibald Hunter married, in 1910, Mary, Dowager Baroness Inverclyde, former wife of George Burns, 2nd Baron Inverclyde and daughter of Hickson Fergusson. There was no issue of the marriage.
Legacy
His archive of over one hundred letters and documents was recently sold. A highlight of the £15,000 collection included twenty six Autograph Letters from Kitchener.