Research & Collections September 10, 2008

The Historical Society of Pennsylvania is one of the largest family history libraries in the nation, has excellent collections on local and regional history, and offers a manuscript collection renowned for its 17th-, 18th- and 19th-century holdings. The Society houses nearly 600,000 books, pamphlets, serials, and microfilm reels; 20 million manuscripts; and over 300,000 graphics items, making it one of the nation's largest non-governmental repositories of documentary materials.