Brownsburg-Chatham, Quebec Brownsburg-Chatham, Quebec Brownsburg-Chatham is a municipality in the Laurentides region of Quebec, Canada, part of the Argenteuil Regional County Municipality. It is located along the Ottawa River, just west of Lachute, and includes the communities of Brownsburg, Cushing, Dalesville, Greece's Point, Pine Hill, and Saint-Philippe. Economic activities include agriculture, tourism and the manufacture of explosives. It is the hometown of Gilles Lupien, retired defenceman of the Montreal Canadiens. Chatham Township was established in 1799, and named after English Statesman William Pitt, 1st Earl of Chatham (1708–1778). Mostly populated by rich American Loyalists, its post office opened in 1829 and the
John Pitt, 2nd Earl of Chatham He continued to hold various ceremonial positions: he had been appointed Lieutenant Governor of Jersey and High Steward of Colchester in 1807, and in 1820 succeeded the Duke of Kent as Governor of Gibraltar. He died at his house in Charles Street, London, on 24 September 1835, aged 78. Chatham married The Hon. Mary Elizabeth Townshend, daughter of the 1st Baron Sydney, on 10 July 1783. The couple had no children. Lady Chatham died on 21 May 1821. Chatham did not remarry and, following his death, the Earldom of Chatham became extinct. John Pitt, 2nd Earl of Chatham General John