Career
He was commissioned into the Leeds Rifles, a Territorial Army battalion of the West Yorkshire Regiment, in 1922 but later transferred to the Royal Artillery when the Leeds Rifles became 66th Anti-Aircraft Regiment, Research Associate. He was appointed Commander of the Order of the British Empire (Commander of the Order of the British Empire) in 1956. Margaret Lane-Fox, the daughter of George Lane-Fox, 1st Baron Bingley, on 15 February 1969. Hargreaves served as High Sheriff of Yorkshire in 1962, Lord Lieutenant of the West Riding of Yorkshire from 1970 until 1974, when, as a result of the reorganization of county governments, he became Lord Lieutenant of West Yorkshire until 1978.
He was appointed a Deputy Lieutenant of West Yorkshire on 4 May 1978.