Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 176.
JUNIATA COUNTY, situated toward the southerly part of Pennsylvania. Area, 360 square miles. Face of the country hilly; soil productive. Seat of justice, Mifflintown. Pop. in 1830, 7,672; in 1840, 11,080; in 1850, 13,029.