Warren County, Ohio (Fanning's, 1853)
Gazetteer/Almanac
WARREN COUNTY, situated in the southwest part of Ohio, and traversed by Little Miami river. Area, 400 square miles. Face of the country, hilly; soil, rich. Pop. in 1810, 9,925; in 1820, 17,837; in 1830 21,468; in 1840, 23,141; in 1850, 25,571.
Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 375.