Immigration
How to Find and Use Naturalization Records
This article provides a good understanding of the naturalization process and how it has changed throughout American history. Helpful for searches for naturalization records.
Naturalization Records at the National Archives at New York City
Useful information on the resources at the NYC archives, what types of records there are, how to begin your research, and how to obtain copies of those records.
U.S. Naturalization and Citizenship
Another good overview of the naturalization and citizenship process with links to other sites with records.
United States Naturalization and Citizenship Online Genealogy Records
This table shows links to countrywide collections and also lists links by state. It does not list collections for lower jurisdictions. Some subscription websites listed can be searched for free at a FamilySearch center or FamilySearch affiliate library.