The Genealogical Society of Pennsylvania

Explore Pennsylvania resources

Search and browse over 200 collections

Learn about upcoming programs and events

Find your Pennsylvania ancestors

Laptop with FamilySearch logo on screen next to large monitor with FamilySearch logo on screen and FamilySearch notepad and pencil on right side.

Visit the FamilySearch Affiliate Library at GSP to view FamilySearch collections not viewable at home. Admission to the FamilySearch room is free.

Library shelves with books

Visit the GSP Library – free for GSP members and open to the public with a $5 admission fee.

Appointments are required: or 267-686-2296.

Library Hours: Monday, Tuesday, Thursday 10 a.m. – 4 p.m. Saturday (2nd and 4th Saturdays) 10 a.m. – 2 p.m.

GSP Store

Visit the GSP Store to purchase books, GSP merchandise, research services, and to become a GSP member.

Become a GSP Member    ~    Donate to GSP 

The Genealogical Society of Pennsylvania (GSP) is a non-profit educational institution located at 2100 Byberry Road, Suite 111, Philadelphia, Pennsylvania 19116. Founded in 1892, GSP is one of the earliest genealogical societies founded in the United States. Our mission is to provide leadership and support in promoting genealogy through education, preservation, and access to Pennsylvania-related genealogical information. GSP is committed to preserving and publishing primary source records and to helping people to search for their ancestors.

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