Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 156.
HERKIMER COUNTY, situated In the central part of New York, and traversed by Mohawk river, and the Erie canal. Area, 1,370 square miles. Face of the country mountainous and diversified; soil on the Mohawk and other streams alluvial and rich, in other parts varied. Seat of justice, Herkimer. Pop. in 1810, 22,046; in 1820, 31,017; in 1830, 55,689; in 1840, 37,477; in 1850, 38,244.