sentences:  Garnsey joined the New York State Militia in 1805.He was Brigade Inspector of Saratoga County from 1810 to 1811, fought as a major in the War of 1812, and was Brigade Inspector of Chautauqua County in 1817.He studied law in Norwich, was admitted to the bar in 1811 and practiced in Rensselaer and Saratoga counties.