Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 59.
BUTLER COUNTY, in the southwest part of Ohio, and traversed by Miami river, and the Miami canal. Area, 480 square miles. Seat of justice, Hamilton. Pop. in 1830, 27,144; in 1840, 28,173; in 1850, 30,789.