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
Earl of Chatham her husband had wished to remain a member of the House of Commons. Their second son was William Pitt the Younger, who became the country's youngest Prime Minister in 1783, at the age of 24. Their eldest son, John Pitt, inherited the earldom and viscountcy in 1778 and the barony in 1803. Upon his death in 1835, all three titles became extinct. The second creation of this title came in 1761 in favour of Lady Hester Pitt; the first creation was for John Campbell, 2nd Duke of Argyll and hence the Duke of Argyll. Earl of Chatham Earl of Chatham,