Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 18.
ADAMS COUNTY, on the east side of Indiana. Watered by Wabash and St. Mary's rivers, and contains 336 square miles. Courts are held at Decatur. Pop. in 1840, 2,264; in 1850, 5,797.