He was raised in England and educated by a private tutor and at school in Shooter's Hill, London. In 1833 he entered the Royal Military Academy, Woolwich, having been nominated for a cadetship by Lord Beresford but was withdrawn after a year when it became clear he was unlikely to pass the final examinations.[2] During his time at Woolwich he earned a reputation for fighting and rebellious behaviour, and on his return home he threatened to join the British Legion, a body of troops leaving for Spain under Sir George de Lacy Evans.[2] Instead, he was encouraged to pursue a career in India, and with help from his late father's contacts he was commissioned as an ensign in the Bengal Native Infantry on 24 February 1837.[3]
India
Chamberlain embarked for India on board the ship George and arrived at Madras in May 1837. He remained at Madras for a short time as the guest of the retired general Sir John Doveton before continuing on to Calcutta in June.[2] In Calcutta, Chamberlain stayed with his uncle George and his aunt whilst he acclimatised to his new home.[2] In November he left Calcutta to join the 12th Regiment at Barrackpore and three months later he was posted to Lucknow with the 55th Regiment.[2]
In mid 1838, he was transferred to the 16th Regiment based at Delhi who were preparing for the First Anglo-Afghan War. His regiment was to become part of the Army of the Indus, serving in the 1st Brigade 1st Division under the command of Sir Willoughby Cotton.[2] He was present at a number of engagements including the Battle of Ghazni in July 1839 and was wounded on several occasions.[4][5] Promoted to lieutenant on 16 July 1842, he transferred to the 1st Cavalry of Shah Shujah's Contingent and took part in a march from Kandahar to Kabul in August 1842.[6] During the withdrawal from Kabul he was again wounded at Landi Kotal in October 1842 and again at Ali Masjid in November 1842.[3]
He became attached to the Governor-General's Bodyguard in January 1843 and took part in the Battle of Maharajpur in December 1843 during the Gwalior campaign.[3] Chamberlain became military secretary to the Governor of Bombay in late 1846 and then brigade major with the Bengal Irregular Cavalry in 1848.[7]
He took part in the Battle of Chillianwala in January 1849 and the Battle of Gujrat in February 1849 during the Second Anglo-Sikh War.[7] He became assistant adjutant-general of the Sirhind division in May 1849 and, having been promoted to captain in the 16th Bengal Native Infantry on 1 November 1849 and to brevet major on 2 November 1849,[8] he became assistant commissioner in the Rawalpindi District in December 1849 and then assistant commissioner in the Hazara District in June 1850.[1] Promoted to lieutenant-colonel on 28 November 1854, he was given the command of the Punjab Irregular Frontier Force and led several expeditions against the frontier tribes.[7]
In retirement, Chamberlain was an active member of the Southampton Unitarian Church.[21] He was a vocal critic of British policy during the Boer War between 1899 and 1901.[22] He was promoted to field marshal on 25 April 1900, died at Lordswood on 18 February 1902[23] and was buried at Rownhams near Southampton.[7]
Family
In 1873, Chamberlain married Charlotte Cuyler Reid, daughter of Major-GeneralSir William Reid, who died in 1896; there were no children.[7]