Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 173.
JEFFERSON COUNTY, situated toward the southeasterly part of Arkansas, and traversed by Arkansas river. Area, 1,180 square miles. Seat of justice, Pine Bluffs. Pop. in 1830, 772; in 1840, 2,566; in 1850, 5,834.