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
William Mainwaring William Mainwaring William Henry Mainwaring (1884 – 18 May 1971) was a Welsh coal miner, lecturer and trade unionist, who became a long-serving Labour Party Member of Parliament. Both as a trade unionist and a politician he struggled, largely successfully to counter Communist influence. He was said to have spoken "with passion and fire on behalf of his fellow miners". Mainwaring was born in Swansea and went to local schools, leaving to work as miner in the South Wales coalfield. He was a member of the South Wales Miners' Federation, and through their sponsorship was able to continue his education