Sir Henry Thomas De la Beche KCB, FRS (10 February 1796 - 13 April 1855) was an English geologist and palaeontologist, the first director of the Geological Survey of Great Britain, who helped pioneer early geological survey methods. He was the first President of the Palaeontographical Society. De la Beche was born in Welbeck Street, Cavendish Square, London. He was the only son of Thomas De la Beche (1755–1801) and his wife, Elizabeth. The family name was originally Beach, but his father changed it to create a fictional connection with the medieval Barons De la Beche of Aldworth, Berkshire. His father served as a brevet major (later lieutenant-colonel) in the Norfolk Yeomanry, a regiment of fencibles in the British Army, and was a slave owner with an estate in Jamaica. In 1800 the family travelled to the plantation in Jamaica when Thomas inherited the estate and his father died there in the following year. Mother and son returned to England, having been shipwrecked to the north of San Domingo on their journey. De la Beche spent his early life living with his mother in Lyme Regis, where he acquired a love for geology through his friendship with Mary Anning. At the age of fourteen he entered the Royal Military College, then at Great Marlow in Buckinghamshire. The peace of 1815, however, changed his career. At the age of twenty-one De la Beche joined the Geological Society of London. He became an avid fossil collector and illustrator, collaborating with William Conybeare on an important paper on ichthyosaur and plesiosaur anatomy that was presented before the Society in 1821. He continued throughout life to be one of its most active, useful and honoured members, serving as president of the Society from 1848 to 1849. He visited many localities of geological interest, not only in Britain, but also in France, Jamaica and Switzerland. In Jamaica he stayed on his estate, Halse Hall, Clarendon Parish, in 1823–1824 and published his geological account of Jamaica in 1827.