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We have genealogists who perform in-depth research in the California State Archives in Sacramento, California.

This archive contains:

  • Census Schedules 1852 state, 1860 federal, and 1880 federal
    Includes name, age, sex, occupation, birthplace and last residence; indexes available
  • County Records 1850-1987
    Includes probate court case files, wills, naturalizations, deeds, homesteads, and vital records for 28 counties. Not all records are available for all counties.
  • Mental Health Records* 1856-1934
    Records may include patient registers and case files for Agnews (located in Santa Clara), DeWitt (located in Auburn), Mendocino, Modesto, Sonoma, and Stockton State Hospitals. Some indexes are available.
  • Military Records 1850-1942
    Includes organization papers, muster rolls, and other records relating to Independent Militia Units, Indian Wars, Civil War, Spanish-American War, World War I and II. Name indexes available for Independent Militia Units, 1851-1866 and Civil War Volunteers, 1861-1867. For United States military records contact the National Archives and Records Administration (NARA).
  • Prison Records* 1850-1979
    Includes San Quentin and Folsom prison registers, inmate photographs, inmate case files (samples only) and pardon files. Name indexes, 1850-1979. Also available are Youth Authority registers and some case files for Whittier (1891-1948), Ventura (1909-1963, girls), and Preston (1894-1914); names indexes are available for records dated through 1930.

"You must be at least 18 years old to purchase"





  • Supreme and Appellate Court Cases 1850-1970
    Includes briefs, transcripts and opinions. Plaintiff and defendant name indexes, 1850-1930, are available.
  • Common School Reports 1862-1960
    Includes school districts, student attendance figures, grade taught, length of school year, school finances, names of teachers and condition of schools.
  • Articles of Incorporation 1850-1959
    Includes company name, purpose, place of business, names of officers and amount of capital invested.
  • Trademarks 1861-date
    Includes name of claimant, type of product, label specimen or written description and occasionally business address. Claimant and trademark name idexes available.
  • Department of Professional and Vocational Standards/Consumer Affairs – Licensing Files* 1885-1968
    Includes biographical data, letters, photographs, newspaper clippings relating to: Architectural Examiners, 1901-1947; Civil and Professional Engineers, 1930-1966; Cosmetologists, 1928-1960; Dental Examiners, 1885-1959; Medical Examiners, 1902-1981; Pharmacy Board, 1894-1994; Chiropractic Examiners, 1928-2000; and Social Work Examiners, 1940-1967.

Use the online descriptive catalog Minerva to search collections available at the California State Archives.

Browse finding aids and collections in the Online Archive of California.

We’ll search records for you and email you digital images of what we find.

Research fees in the California State Archives begin at $300 per project..

We also have California genealogists.

To request in-depth research, request a research quote.


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