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.
Indiana Naturalization Records
- Allen County Naturalizations Records from State Indexes, 1840-1930
- Allen County, Applications for Naturalization Index, 1844-1906
- Allen County, Naturalization Records, 1930-1984
- Bartholomew County Naturalization Records, 1856-1916
- Blackford County Citizenship List
- Blackford County Naturalization Index pre-1951
- Blackford County Naturalization Records
- Boone County, Naturalizations, Sept. 1854-May 1902
- Crawfordsville District Public Library Local History Databases
- Dubois County Naturalization Index pre-1951
- Elkhart County Naturalization Index
- Elkhart County Naturalizations
- Evansville Declarations of Intent Index 1857
- Fountain County Naturalization Index 5 July 1854 to 8 Nov 1892
- Franklin County Naturalization Index 1826-1939
- Hendricks County Declarations of Intent Index (1852-1906)
- Hendricks County Final Oaths Index (1856-1906)
- Howard County Memory, Naturalizations
- Illinois, Northern District Naturalization Index, 1840-1950
- Indiana Digital Archives, Naturalization Search
- Indiana Naturalization Records and Indexes, 1848-1993
- Indiana Index, Source Books
- Indiana, Northern District Naturalization Index, 1840-1950
- Indiana, Northern District Naturalization Index, Soundex Index to Naturalization Petitions 1840-1950
- Jefferson County Naturalization Records Index
- Jefferson County List of Aliens Who Applied for Citizenship
- Kosciusko County Naturalization Applications, 1835-1904
- Lake County Naturalization Index
- Lake County Naturalization Records Index
- Lake County, Naturalization Records, 1907-1985
- Lake County, Residents Who Filed Naturalization Declarations of Intentions in Cook County, Illinois
- LaPorte County, Abstractions from Declaration of Intentions
- Madison County Naturalization Records
- Marion County, Naturalization Records Index 1907-1992; Records 1895-1944, 1907-1992
- Marshall County Naturalization Index 1854-1929
- Orange County Naturalization Abstracts
- Porter County Naturalization Records Index
- Saint Joseph County, Naturalizations Indexes 1856-1954
- St. Joseph County, Petitions for Naturalization Index, 1955-1991
- Steuben County Miscellaneous Naturalization Abstracts
- Sullivan County, Naturalization Records, 1864-1905
- Tippecanoe County, Alien Reports and Declarations, 1826-1907
- Tippecanoe County, Naturalization Index 1826-1957
- Tippecanoe County, Petitions for Naturalization Index, 1956-1984
- Tippecanoe County, Index to Naturalization, 1833-1955; Alien Record, 1888-1905
- Vanderburgh County Naturalization Records, 1857
- Vanderburgh, Evansville Naturalization Records, 1929-1959
- Wabash County Miscellaneous Naturalization Indexes
- Wayne County Naturalization Index
- Wayne County Early Naturalization Records, Prior to 1906
- Whitley County Naturalization Records Index
Good Luck and Happy Hunting!