Lassen County CA Immigration Records

USA (1,403,636) > California (36,413) > Lassen County (231) > Lassen County Immigration Records (1)

USA (1,403,636) > California (36,413) > California Immigration Records (283) > Lassen County Immigration Records (1)

NOTE: Additional records that apply to Lassen County are also on the California Immigration Records page.

Lassen County Immigration Records

Naturalizations, 1865-1935; index 1865-1906 FamilySearch Library

Not sure what to do next in your genealogy research? Get some new ideas by using our Ancestor Source Finder tool.

Additions or corrections to this page? We welcome your suggestions through our Contact Us page

How to Use This Site Video

California Map

Lassen County shown in red

Research Tip

Naturalization documents can list a person's name, age, witnesses, and place of origin. In some cases, women were not required to naturalize separately from their husbands. Before 1906 in the United States, naturalization documents sometimes only listed a home country rather than a specific town or city where a person came from. Since 1906, more detailed information has been included in naturalization documents.

Using Immigration Records

Finding Your Immigrant Ancestor - Where to Start

Find Your Immigrant Ancestor - Manifests and Passenger Lists

Tips for Researching Immigrants to the U.S.

Find Your Immigrant Ancestor - Manifests and Passenger Lists