Born in 1914, Sir Henry Langton worked as teacher and in the police in the 1930s. He joined the armed forces in 1941, as soon as policemen were legally allowed to do so, and became a bomber pilot. Langton served in the Middle East and Yugoslavia. He was awarded a Sir Henry Langton worked as teacher and in the police in the 1930s. He joined the armed forces in 1941, as soon as policemen were legally allowed to do so, and became a bomber pilot. Langton served in the Middle East and Yugoslavia. He was awarded the Distinguished Flying Cross in 1943 and received a Distinguished Service Order in 1945.

Postwar, Langton owned and managed a stud farm in Wiltshire. In 1955 Langton was elected to Wiltshire County Council. He served as Chairman of its Finance Committee from 1959 to 1968, then as Chairman of the Council from 1968 – 1973. He was knighted in 1964. Outside of his political career, Langton also served as chair of the committee of the Victoria County History of Wiltshire.

Langton inherited Overtown House, Wroughton, in 1973 from a kinswoman and changed his name to Calley, which had been his mother’s family name, in line with the wishes expressed in the will.