(This page's most recent update is
June 2024)
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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.
Montana Naturalization Records
- Beaverhead County Naturalization Record Indexes
- Beaverhead County Declarations of Intention, 1856-1929; Index, 1856-1944
- Beaverhead County Naturalization Records, 1906-1929
- Big Horn County Records, 1884-2011
- Big Horn County, Naturalization Records, 1907-1956
- Broadwater County Declarations of Intention, 1907-1929
- Broadwater County Naturalization Records, 1907-1929
- Cascade County Records, 1880-2009
- Cascade County, Naturalization Records, 1888-1999
- Chouteau County Records, 1876-2011
- Chouteau County, Naturalization Records, 1880-1953
- Daniels County, Naturalization Records, 1920-1935
- Dawson County Naturalization Records, 1882-1929
- Deer Lodge County Declarations of Intention 1867-1952, and Repatriations 1936-1957
- Deer Lodge County Naturalization Records and Indexes, 1906-1929
- Eastern Montana Naturalization Records Index
- Fergus County, Naturalization Records 1910-1980
- Fergus County, Naturalization Records 1887-1910
- Flathead County Records, 1871-2007
- Flathead County, Naturalization Records, 1893-1945
- Gallatin County Naturalizations Petitions Index
- Gallatin County, Naturalization Records, 1866-1971
- Granite County Records, 1865-2009
- Granite County Declarations of Intention, 1893-1917
- Granite County Naturalization Records, 1907-1929
- Granite County, Naturalization Records, 1893-1950
- Jefferson County Declarations of Intention, 1886-1951
- Jefferson County Naturalization Records, 1907-1951
- Judith Basin County Records, 1887-2012
- Judith Basin County, Naturalization Records
- Lake County Records, 1857-2010
- Lake County, Naturalization Index, 1923-1945
- Lewis & Clark County Naturalization Record Information of Lewis & Clark Co., MT.: 1866-1941
- Lewis and Clark County Declarations of Intention, 1866-1929
- Lewis and Clark County Naturalization Records, 1906-1929
- Lewis and Clark County, 1866 – 1941 Naturalization Records
- Lewis and Clark County, Naturalization Records, 1933-1993
- Madison County Declarations of Intention, 1870-1929
- Madison County Naturalization Records, 1906-1929
- McCone County Naturalization Records, 1919-1929
- Meagher County Records, 1866-2012
- Meagher County, Naturalization Records, 1883-1940
- Mineral County, Naturalization Index, 1916-1928
- Mineral County, Naturalization Records, 1914-1954
- Missoula County, Naturalization Records, 1953-1993
- Montana Counties Naturalization Records Indexes
- Montana Naturalization Records, 1868-1999
- Montana, County Naturalizations, 1856-1979
- Montana, Southern District Declaration of Intent, 1891-1929; Petition for Naturalization, 1891- 1929; Citizenship Records, 1894-1906; Certificates, 1907-1927
- Montana, Indexes to Naturalization Records of the Montana Territorial and Federal Courts, 1868-1929
- Phillips County Declarations of Intention, 1915-1929
- Phillips County Naturalization Records, 1915-1929
- Pondera County Records, 1910-2012
- Pondera County, Naturalization Records, 1913-1956
- Powell County Declarations of Intention, 1901-1929
- Powell County Index to Naturalization Records
- Powell County Naturalization Records, 1906-1929
- Ravalli County, Naturalization Records, 1893-1958
- Ravalli County, Declarations of Intention, 1893-1929
- Ravalli County, Naturalization Records, 1893-1929
- Richland County Declarations of Intention, 1914-1929
- Richland County Naturalization Records, 1914-1929
- Roosevelt County Declarations of Intention, 1919-1929
- Roosevelt County Naturalization Records, 1919-1929
- Sanders County Records, 1866-2010
- Sanders County, Naturalization Records, 1906
- Sheridan County, Declarations of Intention, 1913-1929
- Sheridan County, Naturalization Records, 1913-1929
- Silver Bow County Naturalization Records 1881-1956 and Indexes (Silver Bow County, Montana)
- Silver Bow County, Naturalization Records, 1883-1999
- Sweet Grass County Records, 1887-2011
- Sweet Grass County, Naturalization Records, 1895-1944
- Teton County Records, 1881-2012
- Teton County, Naturalization Records, 1893-1954
- Toole County Records, 1913-1960
- Toole County, Naturalization Records, 1913-1955
- Valley County Declarations of Intention, 1893-1929
- Valley County Petitions for Naturalization, 1906-1929; Index 1893-1979
- Wibaux County Declarations of Intention, 1914-1927
- Wibaux County Naturalization Records, 1914-1927
- Yellowstone County, Naturalization Records, 1876-1994
Good Luck and Happy Hunting!