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Mercer County Library System

Mercer County Library System

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Ancestry Library Edition

Ancestry Library Edition

Biography, Genealogy, and History

Click here to go to Ancestry Library Edition (external link)

In-Library Use Only. Ancestry® Library Edition, distributed exclusively by ProQuest and powered by Ancestry.com, delivers billions of records in census data, vital records, directories, photos, and more.

Ancestry Academy

Check out Ancestry Academy and 5 Minute Finds to learn more on how to best utilize ancestry.com

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Contact Us

Mercer County Library System
2751 Brunswick Pike
Lawrence Township, NJ 08648

Go to our Contact Page

Library Hours

All Branches, Except Hollowbrook
Monday — Thursday: 9:30 AM — 8:30 PM
Friday & Saturday: 9:30 AM — 5:00 PM

The Hollowbrook Branch
Monday — Friday: 9:00 AM — 5:00 PM

Sundays During the School Year
The Ewing, Hickory Corner, Lawrence, and West Windsor Branches are open 12:30 PM to 5:00 PM.

Go to our Hours Page
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