Wisconsin County Naturalization Records (FamilySearch Historical Records)

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Wisconsin, County Naturalization Records, 1807-1992 .
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This article describes a collection of records at FamilySearch.org.
Wisconsin, United States
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Flag of Wisconsin
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Location of Wisconsin
Record Description
Record Type Naturalization
Collection years 1807-1992
FamilySearch Resources
Related Websites


What is in the Collection?

This collection contains naturalization records from county courthouses in Wisconsin. The record content and time period varies by county.

You can browse through images in this collection by visiting the browse page for Wisconsin, County Naturalization Records, 1807-1992.

Collection Content

Sample Image

Be aware that immigrants could naturalize in any court that performed naturalizations including city, county, state and federal courts. As a result they often selected the most convenient court. If they lived in the Eastern District but worked elsewhere, they may have gone to a court closer to work.

To begin, look for naturalization records in the courts of the county or city where the immigrant lived. If the county has an index search it first. Next look for the petition (second papers), because they are usually easier to find in courts near where the immigrant eventually settled.

After 1906, the declaration can be filed with the petition as the immigrant was required to submit a copy when he submitted the petition.

What Can this Collection Tell Me?

The records usually include the following information:

  • Full name
  • Current residence
  • Birth date and place of birth
  • Date Naturalized
  • Name of court
  • Age when naturalized
  • Spouse's name, married
  • Names of children
  • Arrival date and port of entry
  • Certificate number

How Do I Search the Collection?

To begin your search it is helpful to know:

  • The name of your ancestor.
  • The approximate date of immigration.
  • The approximate date of naturalization.
  • The place where your ancestor lived.

If you do not know this information, check the 1900 or 1910 census and then calculate the possible year of naturalization based on the date of immigration. The 1920 census may tell you the exact year of immigration or naturalization.

View images in this collection by visiting the Browse Page:
To search the collection you will need to follow this series of links:
⇒Select the "Browse" link in the initial search page
⇒Select the "County"
⇒Select the "Record Type, Year Range, and Volume number" which takes you to the images

Look at each image comparing the information with what you already know about your ancestors to determine if the image relates to them. You may need to look at several images and compare the information about the individuals listed in those images to your ancestors to make this determination. Keep in mind:

  • There may be more than one person in the records with the same name.
  • You may not be sure of your own ancestor’s name.
  • Your ancestor may have used different names or variations of their name throughout their life.

What Do I Do Next?

When you have located your ancestor’s naturalization record, carefully evaluate each piece of information given. Save a copy of the image or transcribe the information. These pieces of information may give you new biographical details. Add this new information to your records of each family. You should also look for leads to other records about your ancestors.

I Found Who I was Looking for, What Now?

Use naturalization records to:

  • Learn an immigrant’s place of origin
  • Confirm their date of arrival
  • Learn foreign and “Americanized” names
  • Find records in his or her country of origin such as emigrations, port records, or ship’s manifests
  • Look for the Declaration of Intent soon after the immigrant arrived, and then look for the Naturalization Petition five years later, when the residency requirement would have been met. Look for naturalization records in federal courts and then in state, county, or city courts.
  • An individual may have filed the first and final papers in different courts and sometimes in a different state if the person moved. Immigrants who were younger than 18 when they arrived did not need to file a Declaration of Intent as part of the process.
  • If your ancestor had a common name, be sure to look at all the entries for a name before you decide which is correct.
  • Continue to search the naturalization records to identify siblings, parents, and other relatives in the same or other generations who may have naturalized in the same area or nearby.
  • The witnesses named on naturalization records may have been older relatives of the person in the naturalization process. Search for their naturalizations.
  • You may want to obtain the naturalization records of every person who shares your ancestor’s surname if they lived in the same county or nearby. You may not know how or if they are related, but the information could lead you to more information about your own ancestors.

I Can't Find Who I'm Looking for, What Now?

  • Look for variant spellings of the names. You should also look for alias names, nicknames and abbreviated names.
  • Try a different index if there is one for the years needed. Local historical and genealogical societies often have indexes to local records.
  • Search the indexes and records of nearby counties.

Known Issues with This Collection

Important.png Problems with this collection?
See a list of known issues, workarounds, tips, restrictions, future fixes, news and other helpful information.

For a full list of all known issues associated with this collection see the attached Wiki article. If you encounter additional problems, please email them to support@familysearch.org. Please include the full path to the link and a description of the problem in your e-mail. Your assistance will help ensure that future reworks will be considered.

Citing this Collection

Citing your sources makes it easy for others to find and evaluate the records you used. When you copy information from a record, list where you found that information. Here you can find citations already created for the entire collection and for each individual record or image.

Collection Citation:

"Wisconsin, County Naturalization Records, 1807-1992." Images. FamilySearch. http://FamilySearch.org : accessed 2016. Citing Supreme Court. Historical Society, Madison.


Image citation:

The image citation is available by clicking on the Information tab at the bottom left of the screen. You can browse through images in this collection by visiting the browse page for Wisconsin, County Naturalization Records, 1807-1992.


How Can I Contribute to the FamilySearch Wiki?

We welcome user additions to FamilySearch Historical Records wiki articles. We are looking for additional information that will help readers understand the topic and better use the available records. We also need translations for collection titles and images in articles about records written in languages other than English. For specific needs, please visit WikiProject FamilySearch Records.

Please follow these guidelines as you make changes. Thank you for any contributions you may provide.