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
Sam Mainwaring and patron, Henry Hyndman. In 1885, there came a split in which Mainwaring joined with Eleanor Marx, Ernest Belfort Bax and his friend William Morris in forming the Socialist League. Mainwaring was a foreman of a shop which employed Tom Mann and exerted a political influence upon him. Over time, Mainwaring's views gradually evolved from revolutionary socialism to those of anarcho-communism. In 1891, Mainwaring moved to Swansea and there started the Swansea Socialist Society. He became associated with the fledgling anarchist newspaper "Liberty," edited by J. Tochatti, formerly of the Hammersmith branch of the Socialist League. In September 1903 and