We are pleased to present this guide to assist the public, researchers, and public employees in their research. Please try to be as specific as possible when making requests to enable us to return them to you in a prompt manner. A staff member is available during business hours to assist you with your research by walk-in, mail or email. However, our office is occasionally closed at lunch time. Please call first to confirm that someone is available.

The following is a list of records housed in our office at the Preble County Courthouse. These records are the most requested records used for genealogy purposes. If you would like additional help or information, please contact our office. The Archives and Special Collections Department at Wright State University Dayton, Ohio is also home to many of our records.

  • Estate files 1808 to presently closed cases
  • Marriages 1808 to 1996
  • Wills 1816 to 1961
  • Birth and Death records 1867 to 1908
  • Plat books, Mortgage books, Deed books, Inventory and Sale Bills 1822 to 1857
  • Naturalizations 1860 to 1899
  • Commission Journals 1808 to 1887
  • Record of Common Pleas 1853 to 1858

Common Pleas Cases such as Criminal, Divorce, and Civil, please obtain case numbers from the Preble County Clerk of Courts Office located on the third floor of the courthouse.

Be sure to check out the Preble County Room at the new district office located at:

  • 450 S Barron Street
    Eaton, Ohio

The library has been working with the Microfilm Office in purchasing a great deal of the microfilm from various offices in the Courthouse used for genealogical research.

Our office staff is here to assist you in your research. There is a charge for copies.


The Microfilm Board meets the 2nd Monday of January

The Records Commission Board meets the 3rd Monday of July