JACKSON, a city of southern Ohio, U.S.A., about Tom. S.E. of Columbus ; the county seat of Jackson county. It is served by the Baltimore and Ohio, the Detroit, Toledo and Ironton, and the Hocking Valley railways. The population in 1920 was 5,842 (97% native white) and was 5,922 by the Federal census of 1930. Jack
son is in the heart of the natural gas belt and is surrounded by a coal and iron mining region. It has iron furnaces, foundry and ma chine shops, railroad shops and several other manufacturing indus tries. The city was founded about 1817 and incorporated in