Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 278.
OSAGE COUNTY, situated in the central part of Missouri, with Missouri and Osage rivers on the northwest, and traversed by the Gasconade river. Area, --------- square miles. Seat of justice, Linn. Pop. in 1850, 6,704.