BRANT, Joseph (Indian name: Thayendanega), (1742-1807), Mohawk Chief. Autograph letter signed ("Jos. Brant") to Mr. Gorham, with initialled postscript ("J.B."), Grand River, 13 November 1791. 1 page, 4to, several pinholes not affecting text. Joseph Brant had served the British in the French and Indian War and in Pontiac's War. During the American Revolution, commissioned a Captain in the British Army, he planned the bloody ambush of Continentals at Oriskany (1777) and participated in the Cherry Valley Massacre (1778), and Minisink (1779). Later Brant withdrew to Canada west of Niagara Falls with his tribe. As leader of the Mohawks and other Iroquois, Brant gives a letter of introduction from the Grand River settlement: "The Bearer Mr Fairchild Being a particular friend of mine any Civilities you please to Show him will be acknowledged by Sir...I am Sorry that Business prevented me from paying my Friends in Your Quarter a visit last Summer Should the Winter prove good I intend to do myself the pleasure of coming to See. a few lines from you by the Bearer will be very exceptable." Letters of this quintessential frontier leader are rare.