Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 149.
HARDIN COUNTY, situated toward the northwesterly part of Ohio. Area, 480 square miles. Face of the country generally even, consisting of an elevated table land; soil, productive. Seat of justice, Kenton. Pop. in 1830, 500; in 1840 4,598; in 1850, 8,265.