Colorado Naturalization Records - FamilySearch Historical Records

What is in This Collection?
This collection contains naturalization records, declarations of intention, court orders granting petitions, and case files from eight different NARA collections.The collections are part of Record Group 21 Records of District Courts of the United States at the NARA Regional Archives in Denver, Colorado. The Colorado Division of Court Services Naturalization Cards are from Record Group 85 Records of the Immigration and Naturalization Service. The collection covers the years 1876 to 1990.


 * US District Court for the District of Colorado. Denver Term. Declarations of Intention for Citizenship, 1877-1966,NAID 649217
 * US District Court for the District of Colorado. Denver Term. Court Orders Granting Petitions for Naturalization, 1952-1966,NAID 649271
 * US District Court for the District of Colorado. Denver Term. Naturalization Records, 1972-1986NAID 3514570
 * US District Court for the District of Colorado. Denver Term. Naturalization Case Files, 1876-1947,NAID 649183
 * U.S. District Court for the District of Colorado. Naturalization Petitions, 1982-1988,NAID 5049445
 * U.S. District Court for the District of Colorado. Naturalization Records, January 1, 1987- December 31, 1990,NAID 5955511
 * Colorado.Division of Court Services. RG 85 Naturalization Cards, 1880-1906,NAID 1307044
 * U.S. District Court for the Pueblo Division for the District of Colorado. Orders and Petitions Concerning Naturalization, 1926-1949,NAID 720245

Sample Images
Naturalization is the process of granting citizenship privileges and responsibilities to foreign-born residents. The first naturalization act was passed in 1802. Immigrants to the United States were not required to apply for citizenship. Of those who did apply, many did not complete the requirements for citizenship.

Naturalization to become a U.S. citizen was a two-part process: the Declaration of Intent to Naturalize, or First Papers, and the Naturalization Record (including the Naturalization Petition), or Final Papers. The First Papers were normally filed five years before the Final Papers because of the five-year residency requirement to become a citizen.

No centralized files existed before 1906. In 1906 federal forms replaced the various formats that had been used by the various courts. Copies were sent to the Immigration and Naturalization Service (INS), creating a central file for naturalization papers. The INS is now known as the U.S. Citizenship and Immigration Services (USCIS).

Naturalization records are generally well preserved, but some records may have been lost to fire or other disasters.

The information that was current at the time of naturalization was usually reliable. However, there was always a chance for misinformation. Errors may have occurred because of the informant’s lack of knowledge or because of transcription errors or other circumstances.

What Can These Records Tell Me?
Naturalization Records may include:
 * Name of court
 * Full name of Petitioner
 * Place of residence
 * Occupation
 * Date and place of birth
 * Date of emigration, date of arrival
 * Port of entry and name of ship
 * Date and place of Declaration of Intent to become citizen
 * Name of spouse
 * Date of marriage
 * Number of children, name and residence of each child
 * Birth date and place of birth of each child
 * Able to speak English?
 * Affidavit of witness(es)

How Do I Search This Collection
Before searching this collection, it is helpful to know:
 * The full name of your ancestor
 * The approximate immigration and naturalization dates
 * The ancestor’s residence

View the Images
View images in this collection by visiting the :
 * 1) Select the Record Type
 * 2) Select the Date Range, Volume to view the images.

How Do I Analyze the Results?
Compare each result from your search with what you know to determine if there is a match. This may require viewing multiple records or images. Keep track of your research in a research log.

What Do I Do Next?

 * Whenever possible, view the original records to verify the information and to find additional information that might not be reported. These pieces of information can lead you to additional records and family members.

I Found the Person I Was Looking For, What Now?

 * Use the information to search for the ship manifest
 * Search for other family who naturalized
 * Search the family in census records
 * Search for the family in vital records

I Can’t Find the Person I’m Looking For, What Now?

 * Consult the California Research Tips and Strategies and its Record Finder to search other records
 * Remember that there may be more than one person in the records with the same name
 * Collect entries for every person who has the same surname. This list can help you identify possible relations that can be verified by records
 * If you cannot locate your ancestor in the locality in which you believe they lived, then try searching records of a nearby locality
 * Standard spelling of names typically did not exist. Try variations of your ancestor’s name while searching the index or browsing through images
 * Remember that sometimes individuals went by nicknames or alternated between using first and middle names

Citing This Collection
Citations help you keep track of places you have searched and sources you have found. Identifying your sources helps others find the records you used.

"Colorado Naturalization Records, 1876-1990." Images. FamilySearch. http://FamilySearch.org : accessed 2018. Citing various NAID. Records of District Courts of the United States, 1685 - 2009, RG 21 or Records of the Immigration and Naturalization Service, RG 85. National Archives at Denver.
 * Collection Citation:

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