William Slosson Lincoln (August 13, 1813 – April 21, 1893) was a U.S. Representative from New York. Born in Berkshire (now Newark Valley), Tioga County, New York, Lincoln attended the common schools.He studied law.He was admitted to the bar.He engaged in mercantile pursuits and subsequently in the manufacture of leather.Postmaster of Newark Valley from September 20, 1838, to February 24, 1841, and from December 19, 1844, to September 19, 1866.He served as supervisor in 1841, 1844, 1865, and 1866.He was a Justice of the Peace in 1852 and 1855.