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Historical Society of Pennsylvania

The Historical Society of Pennsylvania is one of the oldest historical societies and one of the largest family history libraries in the nation. Following a complete merger with the Balch Institute for Ethnic Studies, HSP is also a leading repository of immigrant and ethnic history. It is second only to the Library of Congress for material on the nation’s founding and is the country’s third most popular destination for genealogical study. With approximately 21 million records including manuscripts, graphics, and books that span over 350 years of history, HSP is an invaluable resource for historical research.

HSP serves thousands of on-site visitors each year. It also offers a research-by-mail service and extensive online resources, including a library catalog, finding aids, digital collection, and curricular materials. HSP hosts educator workshops and public programs, and publishes a quarterly scholarly journal. To learn more about HSP or to become a member, visit us at www.hsp.org.

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