Cumberland County, Illinois (Fanning's, 1853)
Gazetteer/Almanac
CUMBERLAND COUNTY, situated near the easterly part of Illinois. Area, ----- square miles. Seat of justice, Greenup. Pop. in 1850, 3,720.
Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 97.