The following institutions have significant collections of Thomas Jefferson and Jefferson family manuscripts.
American Philosophical Society
- Thomas Jefferson Papers, 1775-1825
- ca. 250 items
- Finding Aid
- Selected items from this collection have been digitized. Links are provided within the online finding aid.
- Thomas Jefferson, letters to and from various persons, 1791-1840
- 63 items
- Finding Aid

College of William and Mary
- Thomas Jefferson Papers, 1761-1931
- 267 items
- Finding Aid
- All items in this collection have been scanned in color and are available through the library's online catalog. For instructions on accessing these items online, see instructions on the page linked above.
The Historical Society of Pennsylvania
Library of Congress
- Online Catalog
- Collections & Services
- Thomas Jefferson Papers/Manuscripts
- "American Memory" digital library resources
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Massachusetts Historical Society
Missouri Historical Society
New York Historical Society
University of Virginia Library & Special Collections
- Online Catalog
- Click on "Catalog Access Only".
- Guide to The Thomas Jefferson Papers at the University of Virginia
- Search by name or keyword.
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Virginia Historical Society
