Montana Naturalization and Citizenship

Availability
Naturalization records have generally been filed in the county and district courts of Montana. You can write to the clerk of the court and request a search of indexes to certificates of arrival, petitions, declarations, and final naturalization papers.

The Family History Library has copies of some Montana naturalizations. The National Archives—Pacific Alaska Region (Seattle)has documents for:


 * The four territorial district courts (1868-89). (Indexes on Family History Library film 1490886 items 1-8.)
 * U.S. district courts in Butte (1894-1929), Great Falls (1924-26), Helena (1892-1929). (FHL films 1492066 items 1-4 and 1490886 items 11-27.)
 * The U.S. Circuit Court (1891-98). (Family History Library films 1490886 items 9-10 and 1492068 items 1-20.)

Post-1906 Records
In 1906 the Immigration and Naturalization Service (now United States Citizenship and Immigration Services) was created, forms were standardized and courts sent duplicate copies of naturalization records to the INS. To access these records, download a FOIA (Freedom of Information Act) form from www.uscis.gov, fill it out and send it to the address listed on the form.