Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 304.
RALLS COUNTY, situated on the easterly boundary of Missouri, with Mississippi river on the east, and traversed by Salt river. Area, 470 square miles. Face of the country, uneven; soil, productive. Seat of justice, New London. Pop. in 1830, 4,375; in 1840, 5,670; in 1850, 6,151.