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
Earl of Wilton Thomas Egerton, 1st Earl of Wilton died in 1814, the Grey de Wilton barony became extinct as he had no male heirs, while the Grey Egerton baronetcy passed to his kinsman John Grey Egerton (1766–1825), who became the 8th Baronet. The titles of "Earl of Wilton" and "Viscount Grey de Wilton" passed, according to the special remainder, to the 1st Earl's grandson Thomas Grosvenor (1799–1882), who adopted the surname of Egerton and became the 2nd Earl. He was the second son of Lady Eleanor and the first Marquess of Westminster, the younger brother of Richard Grosvenor, 2nd Marquess of Westminster