In Mercer County, the earliest records of naturalization are found under the Clerk of Courts. The first records are found scattered throughout the Minutes of the Common Pleas Court and date from 1814 to 1852. A series of unbound declarations, dated 1838-1839, and a volume of declarations and final papers, dated 1852-1860, complete the set of records issued by the Clear of Courts.

In the second half of the 19th century, naturalization records were issued by the Probate Court. This practice continued until 1906, when the process of naturalization came under federal supervision.

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Submissions from 2022

Kelleomin, Herman Henry - Naturalization Index Record, Mercer County Clerk of Courts

Keller, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Keller, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kelling, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kelly, John - Naturalization Index Record, Mercer County Clerk of Courts

Kelmeyer, H. H. - Naturalization Index Record, Mercer County Clerk of Courts

Kenning, H. H. - Naturalization Index Record, Mercer County Clerk of Courts

Keppenolf, John - Naturalization Index Record, Mercer County Clerk of Courts

Kesler, Christian - Naturalization Index Record, Mercer County Clerk of Courts

Kesler, Christian - Naturalization Index Record, Mercer County Clerk of Courts

Keuthan, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Keuthan, H. H. - Naturalization Index Record, Mercer County Clerk of Courts

Kimberger, Antone - Naturalization Index Record, Mercer County Clerk of Courts

Kirkenshapp, John Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kirkmiller, H. H. - Naturalization Index Record, Mercer County Clerk of Courts

Kiser, John H. H. - Naturalization Index Record, Mercer County Clerk of Courts

Kishler, George - Naturalization Index Record, Mercer County Clerk of Courts

Kizer, Dedrick - Naturalization Index Record, Mercer County Clerk of Courts

Kizer, Gerhard H. - Naturalization Index Record, Mercer County Clerk of Courts

Klaimhence, Joseph - Naturalization Index Record, Mercer County Clerk of Courts

Klaimhence, Peter - Naturalization Index Record, Mercer County Clerk of Courts

Kleefoot, Gerhard - Naturalization Index Record, Mercer County Clerk of Courts

Klefoot, Gerhard - Naturalization Index Record, Mercer County Clerk of Courts

Klesber, Andrew - Naturalization Index Record, Mercer County Clerk of Courts

Kline, Gerhard - Naturalization Index Record, Mercer County Clerk of Courts

Klinkkamer, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Klonne, John P. - Naturalization Index Record, Mercer County Clerk of Courts

Klotsman, John Herm - Naturalization Index Record, Mercer County Clerk of Courts

Kluez, Bernhard - Naturalization Index Record, Mercer County Clerk of Courts

Klute, Herman H. - Naturalization Index Record, Mercer County Clerk of Courts

Klute, Herman - Naturalization Index Record, Mercer County Clerk of Courts

Knapke, Bernhard - Naturalization Index Record, Mercer County Clerk of Courts

Knapke, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Knigman, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Knippel, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Knolmann, Harry - Naturalization Index Record, Mercer County Clerk of Courts

Knopka, Bernard - Naturalization Index Record, Mercer County Clerk of Courts

Knopka, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Knopke, John Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Knost, Garhard Henry - Naturalization Index Record, Mercer County Clerk of Courts

Knost, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Knost, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Knostman, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Knoth, John - Naturalization Index Record, Mercer County Clerk of Courts

Knoth, Peter - Naturalization Index Record, Mercer County Clerk of Courts

Knoth, Sebastian - Naturalization Index Record, Mercer County Clerk of Courts

Knowth, Sebastian - Naturalization Index Record, Mercer County Clerk of Courts

Knupke, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Koch, John - Naturalization Index Record, Mercer County Clerk of Courts

Koepleman, George H. - Naturalization Index Record, Mercer County Clerk of Courts

Koester, John - Naturalization Index Record, Mercer County Clerk of Courts

Koking, Bernard - Naturalization Index Record, Mercer County Clerk of Courts

Kolhorst, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Komp, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Konantz, Conrad - Naturalization Index Record, Mercer County Clerk of Courts

Konanz, Conrad - Naturalization Index Record, Mercer County Clerk of Courts

Konig, Bernard - Naturalization Index Record, Mercer County Clerk of Courts

Konig, Joseph - Naturalization Index Record, Mercer County Clerk of Courts

Koning, Baltazar - Naturalization Index Record, Mercer County Clerk of Courts

Koning, Joseph - Naturalization Index Record, Mercer County Clerk of Courts

Konning, Joseph - Naturalization Index Record, Mercer County Clerk of Courts

Koop, Bernard Henry - Naturalization Index Record, Mercer County Clerk of Courts

Koop, John Bernard - Naturalization Index Record, Mercer County Clerk of Courts

Koop, John Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Koop, John Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Koop, W. F. L. - Naturalization Index Record, Mercer County Clerk of Courts

Kragel, Gerhard - Naturalization Index Record, Mercer County Clerk of Courts

Kramar, Bernard - Naturalization Index Record, Mercer County Clerk of Courts

Kramer, Bernard H. - Naturalization Index Record, Mercer County Clerk of Courts

Kramer, Bernard H. - Naturalization Index Record, Mercer County Clerk of Courts

Kramer, Bernard - Naturalization Index Record, Mercer County Clerk of Courts

Kramer, Deiderick - Naturalization Index Record, Mercer County Clerk of Courts

Kramer, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kramer, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kramer, J. H. - Naturalization Index Record, Mercer County Clerk of Courts

Kramer, Mathias - Naturalization Index Record, Mercer County Clerk of Courts

Kreusch, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kreusch, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kriegel, Peter - Naturalization Index Record, Mercer County Clerk of Courts

Krieg, Sebastian - Naturalization Index Record, Mercer County Clerk of Courts

Kroazer, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kroger, John Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kroger, John H. - Naturalization Index Record, Mercer County Clerk of Courts

Krug, Adam - Naturalization Index Record, Mercer County Clerk of Courts

Krugman, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Krusie, Herman Rhodolph - Naturalization Index Record, Mercer County Clerk of Courts

Krusje, H. H. - Naturalization Index Record, Mercer County Clerk of Courts

Kuhlhorst, G. F. H. - Naturalization Index Record, Mercer County Clerk of Courts

Kuhlman, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Kuhlman, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Kuhn, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Kuhn, Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kulthorst, Frederick - Naturalization Index Record, Mercer County Clerk of Courts

Kumneman, Henry W. - Naturalization Index Record, Mercer County Clerk of Courts

Kumpf, George Jacob - Naturalization Index Record, Mercer County Clerk of Courts

Kunkler, Andreas - Naturalization Index Record, Mercer County Clerk of Courts

Kunkler, Blasius - Naturalization Index Record, Mercer County Clerk of Courts

Kunning, Herman Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kunning, John Henry - Naturalization Index Record, Mercer County Clerk of Courts

Kunzel, Michael Conrad - Naturalization Index Record, Mercer County Clerk of Courts