American Revolutionary War

From September 1, 1776, to the end of the war he was a colonel and the Quartermaster General for the Northern Department.

In 1774, he joined the American Revolution as a volunteer in the Continental Army. Lewis was then made a captain of a regiment of the New York militia. Once the 2nd New York militia regiment was organized, he was promoted to the rank of major.^[5] He was then appointed chief-of-staff to General Horatio Gates, with the rank of colonel, and accompanied him into Canada, and soon after congress appointed him quartermaster-general of the Northern Army. In 1775, he planned and executed the night attack on Stone Arabia, and was in command at the battle of Crown Point, where he was accompanied by New York Governor George Clinton. He was prominent throughout the campaign that ended with the surrender of John Burgoyne at Saratoga.^[6]

New York governor

After the Revolution, Lewis completed his legal studies while he lived in Albany, New York, boarding at the riverside home of James Bloodgood. In 1779, the tax list showed him living there with personal property valued at $2,000, one of the city's highest assessments. Later, he qualified for a "bounty right" as a member of the city regiment of the Albany County Militia. During that time, he acquired some Albany property.^[7] He was elected to the New York State Assembly, 1789 and 1792, and the New York State Senate from 1811 to 1814. He was New York State Attorney General (December 24, 1791 – October 28, 1801) and later Justice and Chief Justice (October 28, 1801)^[8] of the Supreme Court of New York.^[9]

He served as governor of New York from 1804 to 1807, defeating Vice President Aaron Burr in the race to succeed George Clinton as governor. In the New York gubernatorial election, 1804, he was largely responsible for splitting the Jeffersonian Republican Party in New York into "Lewisites" (allies of Lewis) and the "Clintonians" (allies of New York Mayor DeWitt Clinton) with his combination of Lewisites (labeled "Quids" by the Clintonians) and Federalists.^[10]

During his tenure, the United States Military Academy at West Point was established, the state's militia system was restructured, and educational improvements were sanctioned.^[11] On April 30, 1807, he was defeated in his run for re-election by Daniel D. Tompkins, also a future vice president. Tompkins received 35,074 votes, and Morgan Lewis received 30,989 votes. He then returned home to Staatsburg, Dutchess County, New York, where he turned his attention to agriculture. Having given up the practice of law, Lewis established a cloth factory, and for several years devoted himself to manufacturing. The failure of a mercantile house to which his goods were assigned caused him to discontinue the business.^[12]

War of 1812

Prior to the War of 1812, Lewis declined the office of US Secretary of War under President James Madison. Instead, he resumed his duties as Quartermaster General and served in western New York. He was commissioned as a brigadier general on April 3, 1812, and was promoted to major general on March 2, 1813, as part of his service on the Niagara Frontier.^[13] He commanded the American forces at the Battle of Fort George. Although the British position was captured, Lewis ordered Colonel Winfield Scott to break off the pursuit of the defeated British troops. But for Lewis's overcaution, Scott might have been able to capture Major General John Vincent's entire division and greatly weaken the British defense of the Niagara Peninsula. Later, Lewis was appointed as commander of Upstate New York. He procured the release of the American prisoners in Canada, advanced from his private fortune the money for its accomplishment, and rewarded his own tenants who had served in or sent sons to the war by allowing them free rent for the time they served in the army.^[14] After the war, Lewis was discharged from the Army on June 15, 1815.

Lewis was a presidential elector in the presidential election of 1828.