Research Library

NCHS fosters a community of researchers to promote and expand the study of local history. The Research Library houses books, city directories, original manuscripts, thousands of old photographs, newspaper clippings, maps, architectural drawings, and documents pertaining to the people and history of Napa County.

Ask A Librarian

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Need help completing your research? 


How To Do Research

Tips for conducting local history research, including books, online databases, and genealogy.

Where To Do Research

A list of the organizations, collections, and repositories we use the most in our research.

Special Collections

Check out some of these fascinating collections from the NCHS archives.

NCHS Publications

Napa County Historical Society produces several publications on Napa County history. Most of our publications are are free to members or available for purchase.


Doing research on a property? Get started with the Napa County Historic Resources Inventory (HRI) forms.

Local History

Everyone knows about our passion for good wine, but there is so much more to our beautiful valley. Visit our Local History page for articles, timelines, and blog posts, and discover our once-hidden history.


Our research collection depends on donations on Napa County history from people like you. Get in touch with the Research Librarian today about donating your historical, paper-based materials.