Page "Tewksbury Township, New Jersey" Paragraph 1

Tewksbury Township was first mentioned as holding a township meeting on March 11, 1755, as having been formed partly from Lebanon Township, though the exact circumstances of its formation by charter are unknown.

Tewksbury was incorporated as one of New Jersey's initial 104 townships by an Act of the New Jersey Legislature on February 21, 1798.

Portions of the township have been take to form Califon borough ( April 2, 1898 ).

Portions of the township were acquired from Readington Township in 1832 and 1861, and portions were transferred to Clinton Township in 1871 and 1891.