Tuolumne County, California Genealogy

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United States Gotoarrow.png California Gotoarrow.png Tuolumne County

County Courthouse

Quick Facts

Wikipedia has more about this subject: Tuolumne County, California

Parent County

18 February 1850: Tuolumne County was created as an original county. County seat: Sonora [1]

Boundary Changes

Record Loss


Populated Places

Neighboring Counties


Archives and Libraries

The current listing of books is available via the internet on the Tuolumne County Library web page.   The books are available for researchers at the archive as referene material.  

Tuolumne County Library Website

The official records of Tuolumne County, one of California's 27 original counties, are located in the Carolo M. De Ferrari Archive.   Click here for more information about the archive.  

Over 250,000 records from this collection have been entered into the Arachive's database for the public to access and query.  The public can access the collection via the Tuolumne County's website at the following portal.  

Portal to Carlo M. De Ferrari Archive (Tuolumne County Archive)

To begin searching the archives, click the Archive Index button.
  The User Id for the public is Research; no Password is needed.

    Click the Enter button, then click Archives from the drop down list.

       Press Go.


Church History and Records

Court Records

Historical Society

The Tuolumne County Historical Society, established in 1956, is home to the Tuolumne County Museum, Tuolumne County Historical Society and the Tuolumne County Genealogical Society.


Land and Property



Early migration routes to and from Tuolumne County, California Genealogy for emigrant settlers included:[2][3]

Military History and Records


Probate Records


Vital Records

Societies, Libraries and Museums

Family History Centers



  1. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).
  2. National Park Service, "California Trail" (map) in California National Historic Trail at http://www.nps.gov/cali/planyourvisit/upload/CALImap1-web.pdf (accessed 5 August 2011).
  3. Wikipedia contributors, "California Trail" in Wikipedia: the Free Encyclopedia at http://en.wikipedia.org/wiki/California_Trail (accessed 5 August 2012).