California, Northern U.S. District Court Naturalization Index, 1852-1989 is a free collection at FamilySearch with a text-searchable collection and browsable images of naturalization records (citizenship) in courts in Northern California.

The following collections are covered by this index: US District Court. Southern (San Francisco) Division. Northern District.

  • Duplicate Certificates of Citizenship, 1852-1906
  • Naturalization Depositions, 1907-1963
  • Applications for Repatriation, 1936-1969
  • Petitions for Naturalization Transferred from Other Courts, 9/21/1952-8/23/1990
  • Petitions for Naturalization,10/23/1903-9/17/1991


You’ll need to be logged in with a free FamilySearch account to search these records. It’s easy to register for a free account at FamilySearch.


What Can I Learn from California Naturalization Records?

Index cards generally include:

  • Petition number
  • Date of petition
  • Alien Registration number
  • Name and residence of immigrant
  • Birth date of immigrant
  • Date certificate issued
  • Court where certificate issued

Declaration of intent and naturalization petitions may include:

  • Declaration number
  • Name of the immigrant
  • Country of birth
  • Arrival date
  • Date of Declaration of Intent or Naturalization
  • Names of witnesses
  • Signature of judge or court official

In post-1906 records, you may also find:

  • Name
  • Birth date
  • Birthplace
  • Age
  • Race
  • Last foreign residence
  • Current residence
  • Arrival place
  • Marital status
  • Name of spouse
  • Maiden name of wife
  • Birth date of spouse
  • Residence of spouse


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