The NJ State Library’s (NJSL) Genealogy collection consists of about 18,000 items in book or microform format.
Our collection includes resources for all over the United States and even some international resources, so you may follow your New Jersey ancestors out of the state!

Our most popular resources include:
Histories and Directories
- 6000 Family histories
- 1000 New Jersey City Directories
- Town, Church, or County histories
- City Directories

A Genealogy
Research Guide
Click here for an extensive guide to help you with your genealogy journey.
Electronic Subscriptions
We also maintain electronic subscriptions to Ancestry.com (Library edition), HeritageQuest, and NewsBank, which members of the public may use at our State Street location in Trenton. See our Visiting the State Library for details.
Explore our collection of Family History Charts
These visual representations of compiler’s genealogy research might inspire you to create your own family tree!
Newspapers
NJSL maintains a large New Jersey newspaper collection. For a complete list of our subscriptions, please visit the Newspapers Research Guide. If you are looking for historic digitized New Jersey newspapers, please visit the New Jersey Digital Newspaper Project Research Guide.

New Jersey Records Collections
If you are looking for New Jersey State primary document records (New Jersey Birth, Marriage, or Death Records, Wills, Deeds, Military Service Records) please contact the New Jersey State Archives.
Additional Resources
- NJ State Library Catalog
- NJ Office of Vital Records
- List of Professional Genealogists
- Genealogy Electronic Resources
- The Genealogical Society of New Jersey maintains a listing of local professional genealogists.
Keep Informed
For more information about New Jersey Genealogy, and the holdings of NJSL, New Jersey State Archives, and County Clerks’ and Surrogates’ Offices, please visit the Genealogy Research Guide.
Blog and Events

Follow our Genealogy Blog, along with events from the calendar to stay up to date.
Do You Still Have Questions?

Librarian: Regina Fitzpatrick, Genealogy Librarian
Have a question? Need help with research or finding reliable information? The Research Library Ask a Librarian page is here to assist you.
Whether you’re exploring state resources, diving into historical archives, or simply looking for guidance on your next research project, our team of expert librarians is ready to help.