The Ancestor Hunt regularly adds and updates new collection links, as well as searches for and fixes broken links.
(This page's most recent update is January 2025)
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Do you research naturalization records? No? Why not? Does the thought of going through paper files in dusty court basements turn you off? Well – I’m here to tell you that it is worth it – and with recent digitization efforts – more and more original documents have been scanned and made available via microfilm or online.
Some of the larger subscription sites have also made some source documents available – as well as index cards that can lead you to the court that handled the proceedings.
If you wish to get educated first about all of these documents and the naturalization process and how it has changed over time – please read these two terrific summaries:
- The U.S. Archives Naturalization Records
- FamilySearch’s Wiki entry United States Naturalization and Citizenship
- Women and Naturalization
Okay – now that you are educated and know that post-1906 – about 4 awesome documents just drip with great information: Declaration of Intent, Petition for Citizenship or Naturalization, Certificate of Arrival, and the Certificate of Naturalization. Many of the online genealogy websites may not have all of these documents available but do have index cards that are searchable – which have information regarding the court handling the proceedings. With this information, you might be able to track down some of the source documents.
Below is a list of links to free online naturalization record and index collections for the state:
Note: Some links listed take you to a FamilySearch Collection of digital images. Near the bottom of the page under Film/Digital Notes is the name of each sub-collection. If there is a camera icon at the right of the name (in the Format column) then the collections’ images are browsable. If there is a camera with a key icon, it is only available at a Family History Center or affiliated library. If there is a film reel icon, then it is only available in microfilm format, not digital. To take full advantage make sure that you are logged in to FamilySearch. The results may be different if you are signed in, rather than not.
Oregon Naturalization Records
- Baker County Records, 1862-1950
- Baker County, Naturalization Records, 1868-1971
- Benton County Records, 1856-1984
- Benton County Naturalization Records
- Benton County, Naturalization Records, 1912-1962; Indexes, 1864-1975
- Clatsop County Declaration of Intentions, 1850-1939
- Clatsop County Miscellaneous Records, December 1 1873-June 14 1905
- Clatsop County Naturalization Records, 1888-1926
- Clatsop County, Naturalizations from the Commissioners Law and Probate Index
- Columbia County Naturalization Records
- Columbia County Records, 1854-1958
- Columbia County, Miscellaneous Naturalization Indexes
- Douglas County Records, 1850-1983
- Douglas County, Naturalization Records, 1853-1960
- Grant County Records
- Grant County, Naturalization Records, 1854-1972
- Harney County Records, 1870-1991
- Harney County, Index to Miscellaneous Files, 1889-1929
- Harney County, Naturalization Records, 1889-1978
- Jackson County Declarations of Intent to Naturalize Index (1833-1929)
- Josephine County Naturalization Records 1904-1908
- Josephine County Naturalization Records (1904-1908)
- Klamath County, Naturalizations Index 1889 – 1929
- Lincoln County, Naturalization Records, 1893-1956
- Linn County Naturalization Records, 1855-1929; Index, 1850-1956
- Marion County Records, 1849-1976
- Marion County, Naturalization Records, 1930-1975
- Morrow County Citizenship Records, 1855-1929
- Morrow County, Declarations of Intention and Naturalizations Petitions Indexes
- Multnomah County Naturalizations Index 1943-1945
- Oregon Counties Naturalization Records Indexes
- Oregon Historical Records Index
- Oregon, Naturalization Records, 1859-1981
- Oregon, Naturalization Records, 1868-1991
- Oregon, Declarations of Intention, 1859-1941; Petitions for Naturalization, 1906-1941; Indexes, 1863-1956; Military Petitions for Naturalization, 1917-1918
- Oregon, Indexes to Naturalization Records of the U. S. Circuit and District Courts for the District of Oregon, 1859-1956
- Sherman County, Naturalization Records, 1890-1948
- Union County Naturalizations, 1911-1926; Declaration of Intention, 1906-1929
- Union County, Index of Certificates of Naturalizations Index, 1911-1926
- Union County, Index: Declarations of Intention Index, 1906-1929
- Wasco County Naturalization Petitions Index 1906-1959
- Wasco County Naturalization Records, 1860-1962
- Washington County Index to Court Journals Concerning Citizenship, 1851-1955
- Washington County Naturalization Records 1888-1955
- Yamhill County Declaration of Intentions, 1888-1929; Index to Declarations, 1853-1959
- Yamhill County Naturalization Certificate Cards, 1927-1959
- Yamhill County Naturalization Petitions, 1903-1928; Index, 1853-1959, 1968
Good Luck and Happy Hunting!