Welcome to Chatham, New Hampshire. Chatham was first granted in 1767, the town was named in honor of William Pitt, Earl of Chatham and Prime Minister of England. Chatham was regranted in 1770 to a group including Abiel Chandler, founder of the Chandler Scientific School at Dartmouth College, and Samuel Langdon, president of Harvard College and creator of the Blanchard Map of the North Country.
