Susquehanna County was formed from Luzerne County on 21 February 1810.
Communities: Apolacon, Ararat, Auburn, Bridgewater, Brooklyn, Choconut, Clifford, Dimock, Forest Lake, Franklin, Friendsville, Gibson, Great Bend, Hallstead, Harford, Harmony, Herrick, Hop Bottom, Jackson, Jessup, Lanesboro, Lathrop, Lenox, Liberty, Little Meadows, Middletown, Montrose, New Milford, Oakland, Rush, Silver Lake, Springville, Susquehanna Depot, Thompson, Union Dale
Map: Map of Susquehanna Co., Pennsylvania : from actual survey, 1858 with landowners (click map to enlarge), Library of Congress, Geography and Map Division
Susquehanna County research to date has been associated with the Ann M. Hull 1857 Diary. Few records are available online for Susquehanna County 1850-1860.
Centennial History of Susquehanna County, Pennsylvania, Rhamanthus Menville Stocker, 1887.
The Schools of Susquehanna County, Pennsylvania, 1795-1945, George A. Stearns, 1947 (Limited view without login, Internet Archive). Also available at Google Books.
History of Susquehanna County, Pennsylvania, Emily C. Blackman, 1873
Cemetery Records of Susquehanna County, Pennsylvania; Family Search
Cemetery Records of Susquehanna County, Pennsylvania, Family Search
Institutions, Societies, and Government Websites
Northeast Pennsylvania Genealogical Society Digital Records (list of resources; records are not available online)
Vital Records and Substitutes
Property & Tax Records
Susquehanna County Deeds 1812-1923,
First Presbyterian Church, Hallstead, Susquehanna County, Pennsylvania, Register of Baptisms, Births, Marriages, Deaths, Members, 1853-1940, Book 2. (Ancestry)
Susquehanna County Probate Records 1683-1994 (Family Search)
Montrose Democrat (1889–1923)
Montrose Gazette, and Susquehanna County Herald (1818–1825)
Montrose Democrat (1849-1877, 1909)
Montrose Independent Republican (1855-1865)
Montrose Northern Democrat (1847-1848)
Montrose Peoples Advocate (1846-1847)
Montrose Susquehanna Register (1849-1854)