Over time, several municipalities were split off from the township: Jefferson Township on February 11, 1804; Rockaway Township on April 8, 1844; Boonton Township on April 11, 1867; Montville Township on April 11, 1867; Butler Borough on March 13, 1901; Kinnelon Borough on March 21, 1922; Lincoln Park Borough on April 25, 1922; and Riverdale Borough on April 17, 1923.Honeyman, Abraham Van Doren. Index-analysis of the Statutes of New Jersey, 1896–1909: Together with References to All Acts, and Parts of Acts, in the "General Statutes" and Pamphlet Laws Expressly Repealed: and the Statutory Crimes of New Jersey During the Same Period, p. 217. New Jersey Law Journal Publishing Company, 1910. Accessed September 17, 2015.
Over time, several municipalities were split off from the township: Jefferson Township on February 11, 1804; Rockaway Township on April 8, 1844; Boonton Township on April 11, 1867; Montville Township on April 11, 1867; Butler Borough on March 13, 1901; Kinnelon Borough on March 21, 1922; Lincoln Park Borough on April 25, 1922; and Riverdale Borough on April 17, 1923.Honeyman, Abraham Van Doren. Index-analysis of the Statutes of New Jersey, 1896–1909: Together with References to All Acts, and Parts of Acts, in the "General Statutes" and Pamphlet Laws Expressly Repealed: and the Statutory Crimes of New Jersey During the Same Period, p. 217. New Jersey Law Journal Publishing Company 1910. Accessed September 17, 2015.