Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 155.
HENRY COUNTY, situated toward the westerly part of Georgia, with Ocmulgee river on the northeast. Area, 594 square miles. Seat of justice, McDonough. Pop. in 1830, 10,567; in 1840, 11,756; in 1850, 14,726.