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.
Submissions from 2022
Kreimendahl, Otto - Naturalization Index Record, Mercer County Probate Court
Krieg, Sebastian - Naturalization Index Record, Mercer County Probate Court
Krogmann, Clemens - Naturalization Index Record, Mercer County Probate Court
Krogmann, Clemens - Naturalization Index Record, Mercer County Probate Court
Kroop, Gerhard Heinrich - Naturalization Index Record, Mercer County Probate Court
Kroop, Gerhard Heinrich - Naturalization Index Record, Mercer County Probate Court
Krugmann, Clemens - Naturalization Index Record, Mercer County Probate Court
Krugmann, Clemens - Naturalization Index Record, Mercer County Probate Court
Kubler, Fred - Naturalization Index Record, Mercer County Probate Court
Kubler, Fred - Naturalization Index Record, Mercer County Probate Court
Kubler, John - Naturalization Index Record, Mercer County Probate Court
Kubler, John - Naturalization Index Record, Mercer County Probate Court
Kuhl, Anthony - Naturalization Index Record, Mercer County Probate Court
Kuhl, Anthony - Naturalization Index Record, Mercer County Probate Court
Kuhl, Anton - Naturalization Index Record, Mercer County Probate Court
Kuhl, Anton - Naturalization Index Record, Mercer County Probate Court
Kuhl, Anton - Naturalization Index Record, Mercer County Probate Court
Kuhnmuench, Peter - Naturalization Index Record, Mercer County Probate Court
Kuhnmuench, Peter - Naturalization Index Record, Mercer County Probate Court
Kuhnmunch, Peter - Naturalization Index Record, Mercer County Probate Court
Kuhnmunch, Peter - Naturalization Index Record, Mercer County Probate Court
Kunkler, Blasuis - Naturalization Index Record, Mercer County Probate Court
Kunkler, Seraphim - Naturalization Index Record, Mercer County Probate Court
Kunkler, Seraphim - Naturalization Index Record, Mercer County Probate Court
Kunkler, Serophim - Naturalization Index Record, Mercer County Probate Court
Kussman, Kalian - Naturalization Index Record, Mercer County Probate Court
Kutsch, Jacob - Naturalization Index Record, Mercer County Probate Court
Kutsch, Matthias - Naturalization Index Record, Mercer County Probate Court
Laasch, Fred - Naturalization Index Record, Mercer County Probate Court
Laasch, Fred - Naturalization Index Record, Mercer County Probate Court
Lammers, Charles - Naturalization Index Record, Mercer County Probate Court
Lammers, Charles - Naturalization Index Record, Mercer County Probate Court
Lampke, Lewis - Naturalization Index Record, Mercer County Probate Court
Landahn, Frederick - Naturalization Index Record, Mercer County Probate Court
Langenharst, Franz - Naturalization Index Record, Mercer County Probate Court
Lang, Frank - Naturalization Index Record, Mercer County Probate Court
Lang, Frank - Naturalization Index Record, Mercer County Probate Court
Lang, Frank - Naturalization Index Record, Mercer County Probate Court
Lansen, William - Naturalization Index Record, Mercer County Probate Court
Lansen, William - Naturalization Index Record, Mercer County Probate Court
Larantze, Frederick - Naturalization Index Record, Mercer County Probate Court
Larantze, John G. - Naturalization Index Record, Mercer County Probate Court
Latin, Antony - Naturalization Index Record, Mercer County Probate Court
Laux, Peter - Naturalization Index Record, Mercer County Probate Court
Lavanchy, R. C. - Naturalization Index Record, Mercer County Probate Court
Lefevre, Amour - Naturalization Index Record, Mercer County Probate Court
Lefevre, Amour - Naturalization Index Record, Mercer County Probate Court
Lefevre, Elie - Naturalization Index Record, Mercer County Probate Court
Lefevre, Elie - Naturalization Index Record, Mercer County Probate Court
Lehman, Joseph - Naturalization Index Record, Mercer County Probate Court
Lehman, Joseph - Naturalization Index Record, Mercer County Probate Court
Lehman, Joseph - Naturalization Index Record, Mercer County Probate Court
Lehne, F. E. H. - Naturalization Index Record, Mercer County Probate Court
Lehnert, Peter - Naturalization Index Record, Mercer County Probate Court
Lehnert, Simon - Naturalization Index Record, Mercer County Probate Court
Leidek, George - Naturalization Index Record, Mercer County Probate Court
Leidek, George - Naturalization Index Record, Mercer County Probate Court
Leidig, George - Naturalization Index Record, Mercer County Probate Court
Leidig, George - Naturalization Index Record, Mercer County Probate Court
Leidig, George - Naturalization Index Record, Mercer County Probate Court
Lemke, Frederick - Naturalization Index Record, Mercer County Probate Court
Lenartz, Frederick W. - Naturalization Index Record, Mercer County Probate Court
Lenartz, F. W. - Naturalization Index Record, Mercer County Probate Court
Lengenhoff, John - Naturalization Index Record, Mercer County Probate Court
Lengenhoff, John - Naturalization Index Record, Mercer County Probate Court
Lengenhoff, John - Naturalization Index Record, Mercer County Probate Court
Lennartz, Frederick W. - Naturalization Index Record, Mercer County Probate Court
Lennartz, Frederick W. - Naturalization Index Record, Mercer County Probate Court
Lennartz, Gustav - Naturalization Index Record, Mercer County Probate Court
Lennartz, John Henry - Naturalization Index Record, Mercer County Probate Court
Lennartz, Meinrad - Naturalization Index Record, Mercer County Probate Court
Lentz, John - Naturalization Index Record, Mercer County Probate Court
Leuthner, John - Naturalization Index Record, Mercer County Probate Court
Lim, Peter - Naturalization Index Record, Mercer County Probate Court
Linder, Frank - Naturalization Index Record, Mercer County Probate Court
Linder, Frank - Naturalization Index Record, Mercer County Probate Court
Linder, Frank - Naturalization Index Record, Mercer County Probate Court
Ling, Leander N. - Naturalization Index Record, Mercer County Probate Court
Ling, Leander N. - Naturalization Index Record, Mercer County Probate Court
Link, John - Naturalization Index Record, Mercer County Probate Court
Link, John - Naturalization Index Record, Mercer County Probate Court
Link, John - Naturalization Index Record, Mercer County Probate Court
Link, John - Naturalization Index Record, Mercer County Probate Court
Linnbusch, Theodore - Naturalization Index Record, Mercer County Probate Court
Linn, Gottfried - Naturalization Index Record, Mercer County Probate Court
Linn, Jacob - Naturalization Index Record, Mercer County Probate Court
Linn, Jacob - Naturalization Index Record, Mercer County Probate Court
Linn, Micheal - Naturalization Index Record, Mercer County Probate Court
Linn, Micheal - Naturalization Index Record, Mercer County Probate Court
Linn, Micheal - Naturalization Index Record, Mercer County Probate Court
Linn, Philip - Naturalization Index Record, Mercer County Probate Court
Lodder, John - Naturalization Index Record, Mercer County Probate Court
Lohmuller, John Edmund - Naturalization Index Record, Mercer County Probate Court
Long, George - Naturalization Index Record, Mercer County Probate Court
Long, George - Naturalization Index Record, Mercer County Probate Court
Lontrop, Henry - Naturalization Index Record, Mercer County Probate Court
Lony, John - Naturalization Index Record, Mercer County Probate Court
Lorsheter, Frederick - Naturalization Index Record, Mercer County Probate Court
Lorsheter, Frederick - Naturalization Index Record, Mercer County Probate Court
Louck, Carl - Naturalization Index Record, Mercer County Probate Court
