Chatham, New Hampshire those sixty five or over. Chatham, New Hampshire Chatham is a town in Carroll County, New Hampshire, United States. The population was 337 at the 2010 census. It is located in the White Mountains, and except for the southeast corner, all of Chatham is in the White Mountain National Forest. The town is home to the Cold River national forest campgrounds. Chatham was granted to Peter Livins and others, 7 February 1767, by colonial Governor Benning Wentworth. The town was named in honor of William Pitt, Earl of Chatham and Prime Minister of Great Britain, who had recently led Britain
John Pitt, 2nd Earl of Chatham short interval out of office in 1806-7. He became the General Officer in Command of the Eastern District in 1806. In 1798 Chatham returned to the army. He was appointed to command a brigade in the Helder campaign in 1799. He was wounded by a spent ball at the Battle of Castricum on 6 October. After this he served as commander of various military districts, but for some reason was passed over in favour of Arthur Wellesley for a command in the Peninsular War. In May 1809 the Secretary of State for War, Lord Castlereagh, offered Chatham the command of