Knight was born in Woburn, Massachusetts on February 10, 1731, the son of John Knight and Abigail Hastings Knight. He was raised in Killingly, Connecticut and prepared for a legal career; although the exact circumstances of his education are not known, contemporary observers including Matthew Lyon stated that Knight's legal acumen and general knowledge were equal to or superior to those of most college graduates. Knight served in the Connecticut provincial troops during the French and Indian War; his name appears on the 1759 muster roll of the Windham County company commanded by David Holmes. His name also appears on the list of unit members who did not take part in the militia's expedition against the French Army at Lake George in June 1759, although the reason for his absence is not given.
Move to Vermont
In 1762, Knight moved to Brattleboro, Vermont, where he farmed. During Vermont's early years, jurisdiction was claimed by New Hampshire's colonial government, and prospective settlers and speculators purchased land grants from its Governor, Benning Wentworth. The government of New York later claimed jurisdiction, and was upheld by the British government. When the New York government attempted to make those who had bought grants from New Hampshire purchase confirmatory titles, most Vermonters refused to pay for the same land a second time. Instead they formed a militia, the Green Mountain Boys, which resisted efforts by New York to compel payment or evict those who had purchased their land from New Hampshire's governor. The Green Mountain Boys also punished anyone attempting to settle in Vermont after purchasing a grant from New York, and punished those Vermonters who were willing to pay for a confirmatory title from New York. In addition, they resisted anyone residing in Vermont who accepted a government appointment from New York's governor, knowing that these appointments would enable New York to assert jurisdiction over Vermont.
Loyal to New York
Knight served as Brattleboro's town clerk from 1773 to 1774. He was admitted to the bar by New York's courts at about the same time, though the details of his legal studies are not known, and accepted an appointment from New York's governor as a commissioner for administering oaths. These pro-New York activities caused local people loyal to Vermont to look on Knight with disfavor, and after two individuals were killed in a dispute between New York officials and the Vermonters who opposed them, Knight fled Vermont for fear of retribution. He resided in Boston and then New York City, and returned to Brattleboro the following year.
Knight opposed the British during the American Revolution, and eventually concluded that New York would never be able to assert jurisdiction in Vermont, so he became active in the movement that opposed New York. In addition to service in the Vermont Militia as a private in the company commanded by Captain Josiah Boyden, Knight accepted appointment from Vermont as a justice of the peace. Though he was briefly suspended while his previous ties to New York were investigated, he was reinstated several months later and his loyalty was never again questioned. He subsequently served as Brattleboro's representative to the Vermont House in 1781 and 1783. He served as state's attorney for Windham County in 1783, and also as a member of Brattleboro's board of selectmen from 1783 to 1784. Knight also served again as Brattleboro's town clerk from 1783 to 1787.
Post-American Revolution
Knight served in the Vermont House again in 1785. He was judge of the Windham County Court from 1786 to 1787. He was state's attorney again from 1788 to 1789, and served in the Vermont House again in 1787 and 1797. From 1789 to 1791, Knight was an Associate Justice of the Vermont Supreme Court; he served as Chief Justice from 1791 to 1793. He was considered for appointment as Judge of the U.S. District Court when Vermont was admitted to statehood in 1791, and again when the position became vacant in 1793, but was not nominated. In 1792 and 1799, Knight served on the state Council of Censors, the body empowered to meet every seven years and review actions of the state House of Representatives and the governor and executive council to ensure their constitutionality. In 1793, Knight was also a delegate to Vermont's constitutional convention. Knight served on the Windham County Court after his Supreme Court service; he was presiding judge from 1794 to 1796, and again from 1801 to 1802.
Death and burial
Knight died in Brattleboro on July 23, 1804. He is presumed to have been buried at the site which is now known as Meeting House Hill Cemetery in Brattleboro, but the exact location of his grave is not known.
Family
In 1757, Knight married Mary Covill of Killingly, Connecticut. Their children included:
