Colorado, United States Naturalization Records - FamilySearch Historical 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.

National Archives Related 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

What Can These Records Tell Me?
The following information may be found in these records: • 2

How Do I Search This Collection?
Before searching this collection, it is helpful to know:
 * Name of the person
 * Approximate date of the event

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.

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

 * Add any new information to your records
 * If available, check the image for additional information
 * Analyze the entry to see if it provides additional clues to find other records of the person or their family

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

 * Try searching by surname only
 * The person may be recorded with an abbreviated or variant form of their name
 * Remember that spelling was generally not standardized until the early part of the 20th century

Research Helps
The following articles will help you research your family in Colorado.

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.