HARTFORD CITY, the county seat of Blackford county, Ind., U.S.A., 62m. N.E. of Indianapolis. It is served by the Nickel Plate and the Pennsylvania railways and inter-urban electric lines. The population was 6,183 in 192o (97% native white) and 6,613 in 1910 by the Federal census. The city has important window glass and chipped-glass factories, paper-pulp mills and other in dustries. It was settled in 1832, laid out in 1839, incorporated as a town in 1867 and as a city in 1894.