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
William Pitt, 1st Earl of Chatham "destroying all party distinctions". Pitt made appointments based not on connections but on merit, such as Charles Townshend to the Exchequer and Shelburne as Secretary of State, to order American affairs. Pitt chose for himself the office of Lord Privy Seal, which required his elevation to the House of Lords, and on 4 August he became Earl of Chatham in the county of Kent and Viscount Pitt of Burton Pinsent in the county of Somerset. Pitt's decision to accept a peerage was likely influenced by his declining health and desire for a less demanding role, but the "great commoner" lost