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
Arthur Mainwaring Forest. In 1641 the forest was the scene of disorder and poaching of the deer, and he recommended firm action around Egham, which was however thwarted by local sympathies. He had objected at the beginning of the reign of Charles I to the East India Company's gunpowder mills on the edge of Windsor Forest; later, in 1635, he was himself in the gunpowder business with Andrew Pitcairn. Arthur Mainwaring Sir Arthur Mainwaring (c. 1580 – 1648) was an English politician who sat in the House of Commons from 1624 to 1626. Mainwaring was the eldest son of Sir George Mainwaring