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
Abels, John L. - Naturalization Index Record, Mercer County Clerk of Courts
Able, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Addelmeyer, Bernard H. - Naturalization Index Record, Mercer County Clerk of Courts
Adelmeyer, Bernard H. - Naturalization Index Record, Mercer County Clerk of Courts
Aham, Michael - Naturalization Index Record, Mercer County Clerk of Courts
Ahlers, Frederick - Naturalization Index Record, Mercer County Clerk of Courts
Ahlers, John Deederick - Naturalization Index Record, Mercer County Clerk of Courts
Ahlers, John D. - Naturalization Index Record, Mercer County Clerk of Courts
Ahrens, Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Albers, Bernard H. - Naturalization Index Record, Mercer County Clerk of Courts
Albers, Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Albers, Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Albers, Eitert - Naturalization Index Record, Mercer County Clerk of Courts
Albers, Henry J. - Naturalization Index Record, Mercer County Clerk of Courts
Albers, John F. - Naturalization Index Record, Mercer County Clerk of Courts
Albers, John F. - Naturalization Index Record, Mercer County Clerk of Courts
Albin, John Babtest - Naturalization Index Record, Mercer County Clerk of Courts
Albin, John Babtest - Naturalization Index Record, Mercer County Clerk of Courts
Albright, J. G. - Naturalization Index Record, Mercer County Clerk of Courts
Alleman, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Allerman, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Allerman, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Allhoff, George - Naturalization Index Record, Mercer County Clerk of Courts
Alt, Frederick - Naturalization Index Record, Mercer County Clerk of Courts
Althoff, George - Naturalization Index Record, Mercer County Clerk of Courts
Andres, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Ankernan, C. - Naturalization Index Record, Mercer County Clerk of Courts
Appman, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Arnz, Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Athmer, Frederick - Naturalization Index Record, Mercer County Clerk of Courts
Athmer, Frederick - Naturalization Index Record, Mercer County Clerk of Courts
Austerman, Bernhard - Naturalization Index Record, Mercer County Clerk of Courts
Baberler, Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Baberler, Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Backer, Herman Henry - Naturalization Index Record, Mercer County Clerk of Courts
Baker, Ferdinand - Naturalization Index Record, Mercer County Clerk of Courts
Baker, Frederick - Naturalization Index Record, Mercer County Clerk of Courts
Baker, Henry Jr. - Naturalization Index Record, Mercer County Clerk of Courts
Baker, Henry Sr. - Naturalization Index Record, Mercer County Clerk of Courts
Balfs, Conrad - Naturalization Index Record, Mercer County Clerk of Courts
Baltzer, John Antone - Naturalization Index Record, Mercer County Clerk of Courts
Barger, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Barger, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Barhdolt, Phillip - Naturalization Index Record, Mercer County Clerk of Courts
Barhorst, John H. - Naturalization Index Record, Mercer County Clerk of Courts
Barkhurst, John Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Barkman, H. A. - Naturalization Index Record, Mercer County Clerk of Courts
Barney, Adam - Naturalization Index Record, Mercer County Clerk of Courts
Barney, John - Naturalization Index Record, Mercer County Clerk of Courts
Barning, Jacob - Naturalization Index Record, Mercer County Clerk of Courts
Barning, Jacob - Naturalization Index Record, Mercer County Clerk of Courts
Barrington, John - Naturalization Index Record, Mercer County Clerk of Courts
Barrington, William - Naturalization Index Record, Mercer County Clerk of Courts
Barrington, William - Naturalization Index Record, Mercer County Clerk of Courts
Bartels, Francis - Naturalization Index Record, Mercer County Clerk of Courts
Barting, Anthony - Naturalization Index Record, Mercer County Clerk of Courts
Basil, Christian - Naturalization Index Record, Mercer County Clerk of Courts
Bast, Frederick - Naturalization Index Record, Mercer County Clerk of Courts
Battesteder, Jacob J. - Naturalization Index Record, Mercer County Clerk of Courts
Battesteder, Jacob J. - Naturalization Index Record, Mercer County Clerk of Courts
Battian, George - Naturalization Index Record, Mercer County Clerk of Courts
Baumhoff, Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Baunt, Frederick - Naturalization Index Record, Mercer County Clerk of Courts
Beart, Jacob - Naturalization Index Record, Mercer County Clerk of Courts
Beart, Jacob - Naturalization Index Record, Mercer County Clerk of Courts
Bechel, John C. - Naturalization Index Record, Mercer County Clerk of Courts
Beckel, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Becker, Philip - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, George - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, George - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, Herman - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, J. F. - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, John Gerhard - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, John Gerhard - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, John H. - Naturalization Index Record, Mercer County Clerk of Courts
Beckmann, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Beckmann, Herman - Naturalization Index Record, Mercer County Clerk of Courts
Beckmann, Herman - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, William - Naturalization Index Record, Mercer County Clerk of Courts
Beckman, William - Naturalization Index Record, Mercer County Clerk of Courts
Beddinghorst, Deiderick - Naturalization Index Record, Mercer County Clerk of Courts
Beekman, William - Naturalization Index Record, Mercer County Clerk of Courts
Beekman, William - Naturalization Index Record, Mercer County Clerk of Courts
Behrens, Behnarde - Naturalization Index Record, Mercer County Clerk of Courts
Behrens, Bernard - Naturalization Index Record, Mercer County Clerk of Courts
Benne, G. Henry - Naturalization Index Record, Mercer County Clerk of Courts
Benne, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Benne, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Benter, Martin - Naturalization Index Record, Mercer County Clerk of Courts
Bergenbrock, Henry G. - Naturalization Index Record, Mercer County Clerk of Courts
Bergmann, Stephan - Naturalization Index Record, Mercer County Clerk of Courts
Berlin, Christian Frederick - Naturalization Index Record, Mercer County Clerk of Courts
Berner, Christian - Naturalization Index Record, Mercer County Clerk of Courts
Berner, Herman Henry - Naturalization Index Record, Mercer County Clerk of Courts
Berner, William - Naturalization Index Record, Mercer County Clerk of Courts
Bernhard, Francis - Naturalization Index Record, Mercer County Clerk of Courts
Bernholt, Franz - Naturalization Index Record, Mercer County Clerk of Courts
Bial, Charley - Naturalization Index Record, Mercer County Clerk of Courts
Bickel, Henry - Naturalization Index Record, Mercer County Clerk of Courts
Bifsing, Joseph - Naturalization Index Record, Mercer County Clerk of Courts
