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
Bargainding, Henry - Naturalization Index Record, Mercer County Probate Court
Bargert, John Gerhard - Naturalization Index Record, Mercer County Probate Court
Barhorst, Joseph B. - Naturalization Index Record, Mercer County Probate Court
Bar, Joseph - Naturalization Index Record, Mercer County Probate Court
Bar, Joseph - Naturalization Index Record, Mercer County Probate Court
Barnes, John W. - Naturalization Index Record, Mercer County Probate Court
Barrenbrugge, Clemens - Naturalization Index Record, Mercer County Probate Court
Barrenbrugge, Clemens - Naturalization Index Record, Mercer County Probate Court
Barrenbrugge, Clemens - Naturalization Index Record, Mercer County Probate Court
Barrenbrugge, Frank - Naturalization Index Record, Mercer County Probate Court
Barry, Henry - Naturalization Index Record, Mercer County Probate Court
Base, Frank - Naturalization Index Record, Mercer County Probate Court
Bauer, Jacob - Naturalization Index Record, Mercer County Probate Court
Bauer, Jacob - Naturalization Index Record, Mercer County Probate Court
Bauer, Jacob - Naturalization Index Record, Mercer County Probate Court
Bauer, Peter - Naturalization Index Record, Mercer County Probate Court
Bauer, Peter - Naturalization Index Record, Mercer County Probate Court
Bauer, Peter - Naturalization Index Record, Mercer County Probate Court
Bauer, William - Naturalization Index Record, Mercer County Probate Court
Bauer, William - Naturalization Index Record, Mercer County Probate Court
Bauer, William - Naturalization Index Record, Mercer County Probate Court
Baumann, Sebastian - Naturalization Index Record, Mercer County Probate Court
Baumgart, Blato - Naturalization Index Record, Mercer County Probate Court
Baumgartner, F. H. - Naturalization Index Record, Mercer County Probate Court
Baumgartner, Frederick - Naturalization Index Record, Mercer County Probate Court
Baumgartner, Frederick - Naturalization Index Record, Mercer County Probate Court
Baumgartner, Frederick - Naturalization Index Record, Mercer County Probate Court
Baumgartner, William - Naturalization Index Record, Mercer County Probate Court
Baumgartner, William - Naturalization Index Record, Mercer County Probate Court
Bax, Harman - Naturalization Index Record, Mercer County Probate Court
Beackmann, Henry - Naturalization Index Record, Mercer County Probate Court
Beam, Charles - Naturalization Index Record, Mercer County Probate Court
Beaun, Jacob - Naturalization Index Record, Mercer County Probate Court
Becker, Joshua - Naturalization Index Record, Mercer County Probate Court
Becker, Joshua - Naturalization Index Record, Mercer County Probate Court
Behm, Christian - Naturalization Index Record, Mercer County Probate Court
Behrens, William - Naturalization Index Record, Mercer County Probate Court
Behrens, William - Naturalization Index Record, Mercer County Probate Court
Behrens, William - Naturalization Index Record, Mercer County Probate Court
Behrens, William - Naturalization Index Record, Mercer County Probate Court
Beinkman, Henry - Naturalization Index Record, Mercer County Probate Court
Beirick, Henry - Naturalization Index Record, Mercer County Probate Court
Beirick, Henry - Naturalization Index Record, Mercer County Probate Court
Berger, Andrew - Naturalization Index Record, Mercer County Probate Court
Berger, Joseph - Naturalization Index Record, Mercer County Probate Court
Berger, Joseph - Naturalization Index Record, Mercer County Probate Court
Berlien, Christian Frederick - Naturalization Index Record, Mercer County Probate Court
Bernhead, Francis - Naturalization Index Record, Mercer County Probate Court
Beutte, Paul - Naturalization Index Record, Mercer County Probate Court
Beutter, Paul - Naturalization Index Record, Mercer County Probate Court
Beyer, John - Naturalization Index Record, Mercer County Probate Court
Beyer, John - Naturalization Index Record, Mercer County Probate Court
Beyer, John - Naturalization Index Record, Mercer County Probate Court
Bichler, Mony - Naturalization Index Record, Mercer County Probate Court
Biestein, Charles - Naturalization Index Record, Mercer County Probate Court
Bildstein, Carl - Naturalization Index Record, Mercer County Probate Court
Bildstein, Carl - Naturalization Index Record, Mercer County Probate Court
Bildstein, Vincent - Naturalization Index Record, Mercer County Probate Court
Bildstein, Vincent - Naturalization Index Record, Mercer County Probate Court
Bildstein, Vincent - Naturalization Index Record, Mercer County Probate Court
Billermann, Theodore - Naturalization Index Record, Mercer County Probate Court
Billerman, Theodore - Naturalization Index Record, Mercer County Probate Court
Birecell, John - Naturalization Index Record, Mercer County Probate Court
Birecree, John - Naturalization Index Record, Mercer County Probate Court
Birecree, John - Naturalization Index Record, Mercer County Probate Court
Birkle, Charles - Naturalization Index Record, Mercer County Probate Court
Bockhold, Henry - Naturalization Index Record, Mercer County Probate Court
Bockhold, Henry - Naturalization Index Record, Mercer County Probate Court
Boerger, Andrew - Naturalization Index Record, Mercer County Probate Court
Bohlmann, August - Naturalization Index Record, Mercer County Probate Court
Bohlmann, August - Naturalization Index Record, Mercer County Probate Court
Bolhoefner, Henry - Naturalization Index Record, Mercer County Probate Court
Bolhoefner, Henry - Naturalization Index Record, Mercer County Probate Court
Bollenbaugh, Abraham - Naturalization Index Record, Mercer County Probate Court
Bollenbaugher, Jacob - Naturalization Index Record, Mercer County Probate Court
Bolte, Henry - Naturalization Index Record, Mercer County Probate Court
Borgert, Barney - Naturalization Index Record, Mercer County Probate Court
Borgert, Barney - Naturalization Index Record, Mercer County Probate Court
Borgert, Barney - Naturalization Index Record, Mercer County Probate Court
Borgert, G. Henry - Naturalization Index Record, Mercer County Probate Court
Borgert, Henry - Naturalization Index Record, Mercer County Probate Court
Borgert, Henry - Naturalization Index Record, Mercer County Probate Court
Bose, George - Naturalization Index Record, Mercer County Probate Court
Bott, Peter - Naturalization Index Record, Mercer County Probate Court
Brackman, August Rev. - Naturalization Index Record, Mercer County Probate Court
Brackman, August Rev. - Naturalization Index Record, Mercer County Probate Court
Brackmann, Theodosius H. - Naturalization Index Record, Mercer County Probate Court
Brackmann, Theodosius H. - Naturalization Index Record, Mercer County Probate Court
Branchle, Joseph - Naturalization Index Record, Mercer County Probate Court
Branchle, Joseph - Naturalization Index Record, Mercer County Probate Court
Brand, H. A. - Naturalization Index Record, Mercer County Probate Court
Brand, M. A. - Naturalization Index Record, Mercer County Probate Court
Brand, M. A. - Naturalization Index Record, Mercer County Probate Court
Brasch, Fritz - Naturalization Index Record, Mercer County Probate Court
Brasch, Fritz - Naturalization Index Record, Mercer County Probate Court
Brasch, Fritz - Naturalization Index Record, Mercer County Probate Court
Braun, John - Naturalization Index Record, Mercer County Probate Court
Brechheiser, Martin - Naturalization Index Record, Mercer County Probate Court
Bregmeir, Micheal - Naturalization Index Record, Mercer County Probate Court
Brening, Herman - Naturalization Index Record, Mercer County Probate Court
