William Massey-Mainwaring William Massey-Mainwaring The Honourable William Frederick Barton Massey-Mainwaring (28 May 1845 – 12 March 1907) was an Irish art collector and Conservative Party politician in the United Kingdom. The fifth son of Eyre Massey, 3rd Baron Clarina and his wife Susan Elizabeth "née" Burton, he was originally known as William Frederick Barton Massey. Educated at Trinity College Dublin, he was called to the bar at the Inner Temple, London. In 1872 he married Isabella Anne Milman, a widow and only child of Benjamin Lee Mainwaring of Knaresborough. He assumed the surname Massey-Mainwaring on marriage. Massey-Mainwaring was a well-known art collector
Captain Mainwaring manager and his status as Captain and commander of the local Home Guard volunteer unit. He became commander of his home guard unit by saying that he had served as a captain in the last British conflict, despite serving 'somewhere in the Orkneys' during the Great War and only being deployed to France in 1919, the year after the armistice was signed. He was later officially designated as the Captain by the GHQ, in the episode Room at the Bottom, after his brief reduction in rank. Despite his claims that he was born into a well-to-do family, it is revealed