Florida Naturalization and Citizenship
Naturalization records have been filed in the county, circuit, and U.S. district courts. The Family History Library has copies of the records from very few counties.
The National Archives—Southeast Region (Atlanta) has naturalization records of the U.S. district court for the Southern District of Florida (Key West) for the years 1875 to 1948 and records for the Southern District of Florida (Miami) for 1907 to 1948.
In 1906 the Immigration and Naturalization Service (now United States Citizenship and Immigration Services) was created, forms were standardized and duplicate records created by the court were sent to the INS. To access these records, download a FOIA (Freedom of Information Act) form from www.uscis.gov, fill it in and send it to the address listed on the form. You may also contact the National Archives—Southeast Region (Atlanta) for naturalization records.