Colorado, United States Naturalization Records, 1877-1952
This collection includes records such as Petitions for Naturalization, Declarations of Intention, and Oaths of Allegiance filed in the United States District Court of Colorado from 1877 to 1952. Original images are housed at the National Archives and Records Administration Denver Branch. This collection is associated with NARA Record Group 21 and Microfilm Publication M1192.
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Colorado, United States Naturalization Records
What is in This Collection?
This collection includes records such as Petitions for Naturalization, Declarations of Intention, and Oaths of Allegiance filed in the United States District Court of Colorado in Pueblo and Denver from 1877 to 1952. Original images are housed at the National Archives and Records Administration Denver Branch. This collection is associated with NARA Record Group 21 and Microfilm Publication M1192. See United States Naturalization and Citizenship for more information. Additional records and/or images may be added to this collection in the future.
Related National Archives Collections
U.S. District Court for the Pueblo Division of the District of Colorado.
- Naturalization Certificate Stubs, 1907–1926
- Mixed Naturalization and Other Records, 1884–1919
- Orders and Petitions Concerning Naturalization, 1926–1949
- Lists of Naturalization Petitions Recommended, Continued, or Denied, 1926–1949
- Naturalization Case Files, 1883–1922
- Petition and Naturalization Record Books, 1912–1949
U.S. District Court for the Northern (Denver) Division of the District of Colorado
- Naturalization Certificate Stubs, 1907–1919
- Soldiers' Naturalization Certificate Stubs, 1919–1920
- Declarations of Intention for Citizenship, 1877–1966
- Naturalization Dockets, 1906–1916
- Naturalization Case Files, 1876–1947
- Petitions for Naturalization, 1906–1990
- Soldiers' Petition and Naturalization Record Books, 1918–1928
- Petitions for Naturalization by Members of Armed Forces, 1943–1956
What Can These Records Tell Me?
The following information may be found in these records: Petition
- Name of the petitioner
- Residence
- Country of birth
- Place and date of arrival
- Names of two witnesses
- Petition number
- Date of petition
- Volume and page number of the petition
Declarations of Intent and Naturalization Petitions
- 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
- 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
Collection Content
Sample Images
1939 Declaration of Intention
1941 Petition for Naturalization
1942 Oath of Allegiance
1941 Certificate of Arrival
Inventory
For a list of all the titles included in this Historical Records publication see Colorado, United States Naturalization Records - Inventory
Collection Details
Location of Original Records
National Archives and Records Administration
"Colorado, United States Naturalization Records, 1877-1952", Database. FamilySearch. https://familysearch.org : 12 March 2025.
