Jackson, TENN., the county-seat of Madison co., 85 mi. n. e. of Memphis, on the south fork of the Forked Deer River and on the Illinois Central, the Missouri & Ohio and the Nashville, Chattanooga & Saint Louis railroads. It is an important trading center for a rich farming district, and contains cotton mills and manufactures of engines, furniture, clothing, carriages and other articles. The West Tennessee branch of the State Agricultural Experiment Station, Union University, Lane University and the Memphis Conference Female Institute are located here. Jackson was settled in 1810 and was incorporated in 1854. During the Civil War it was used as a basis of operations. Population in 1910, 15,779.