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
William Massey-Mainwaring who lent items from his collection to public galleries around the country. He was involved in Conservative politics and in 1892 put his name forward as a candidate for the Hackney Central constituency. Eventually he stood aside in favour of Sir Andrew Scoble. In 1895 he was elected as member of parliament for Finsbury Central, holding the seat until 1906. He died suddenly from influenza and diabetes at his London home in March 1907, aged 61. 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