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
George Boulton Mainwaring George Boulton Mainwaring George Boulton Mainwaring was a Tory MP for Middlesex, a position that had also been held by his father William Mainwaring. Mainwaring is thought to have been born in 1773. He was the son of William Mainwaring. In the 1802 general election, William was opposed by the radical Francis Burdett. William had previously resisted Burdett's calls for an inquiry into Prison abuses, particularly at Coldbath Fields Prison. William was defeated by Burdett but the election was declared void in 1804 and, in the following contest, George was elected. The result was reversed in favour of Burdett in