Genealogical and Local History Books in Print. Once a published genealogy of interest is found, try to find it in the Free Library online catalog. If the item is not part of the Free Library collection, ask a librarian about interlibrary loan. Another important one is Genealogies of Pennsylvania Families. Collective genealogies are usually, but not always, displayed in a prominent place in the browsing area of a library collection.
Most local histories have biographical sections that contain detailed genealogical information.
United States Local Histories in the Library of Congress. A Bibliography of American County Histories. Genealogical and Local History Books in Print. Bibliography of Pennsylvania History. Reel Index to the Microfilm Collection of Pennsylvania County and Regional Histories.