Chatham Township, New Jersey incorporated as an independent borough and its former village boundaries were expanded between 1891 - 1899 with annexed portions of rural lands that had formerly been within the township. The settlement of Chatham had been established in 1710 as "John Day's Bridge" and, in 1773 when New Jersey was an English province, adopted the name of "Chatham" to honor William Pitt, 1st Earl of Chatham, a British supporter of the colonial cause. This village also had been within Morris Township and it was an active community in the Revolutionary War. On August 19, 1892, Chatham seceded from the new township
John Pitt, 2nd Earl of Chatham It was around this time that he earned his nickname of 'the late Lord Chatham' due to his unpunctuality. Chatham nevertheless hung onto his office until the following December, when Pitt finally responded to pressure and moved his brother to the less responsible post of Lord Privy Seal. Two years later Chatham was promoted to Lord President of the Council. Here he stayed, remaining in office after Pitt's resignation under Henry Addington, until a cabinet reshuffle in June 1801 moved him to the post of Master-General of the Ordnance. He continued in this post until May 1810, with only a