Between 1895 and 1906 residents could have filed in any county, so all certificates of citizenship for county residents may not necessarily be found in series 3573. Consult the series catalog for specific series in other counties. Prior to 1896 citizenship records of county residents could be in the records of any of the district courts, the Supreme Court, or the Salt Lake County Probate Court. Since Salt Lake County has been part of the 3rd district since 1856 and part of the lst district from 1851 through 1855, records of those two courts would be most likely to contain citizenship papers of county residents, but residents could still file in any court of record. For other possible sources consult the Research Guide to Naturalization records.
Most volumes have their own index.
Entries are alphabetical by the first letter of the individual's surname. The series was microfilmed in 1981 and 1991. Archival processing by A.C. Cone was completed in in 1989.