Ada Public Library has digitized genealogy collections hosted at the Rutherford B. Hayes Presidential Library and Advantage Archives.

• Ohio Obituary Index at RBHPL

• Ada Public Library Digital Archives, at AA 

  • • The Ada Herald
      1916-2012
    • Ada High School Year Books
      1913-2015
    • The Ada Record
      1873-1984
    • University Herald
      1885-1916
    • Hardin County – County Record
      1867-1893
    • Hardin County – Probate Court – Will Records
      1901-1908
    • First United Methodist Church – Record Book
      1859-1972
    • Herald
      2000-2001
    • Hardin County – Probate Court – Death Records
      1868-1906
    • Public Library Board Of Trustees
      1936-1936
    • Hardin County – Probate Court – Birth Records
      1867-1906
    • Hardin County – Town And Country League Minutes
      1914-1914
    • The Ada Commercial
      1877-1878
    • The Commencement News
      1884-1884