Ottawa County, Ohio Genealogy

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Template:Ohio-stub United StatesGotoarrow.png Ohio Gotoarrow.png Ottawa County

County Courthouse


Parent County

1840--Ottawa County was created 6 March 1840 from Erie, Sandusky, and Lucas Counties.
County seat: Port Clinton [1]

Boundary Changes

See an interactive map of Ottawa County boundary changes.

Record Loss


Populated Places

Neighboring Counties



Harris-Elmore Union Cemetery (aka) Guss, Union, Elmore

Harrington Cemetery (aka) Old Elmore, Elmore

Rymers Cemetery (aka) Rice, Elmore



Ethnic, Political, or Religious Groups



Local Histories



  • Civil War
    Civil War service men from Ottawa County served in various regiments. Men often joined a company (within a regiment) that originated in their county. Listed below are companies that were specifically formed in Ottawa County.
- 41st Regiment, Ohio Infantry, Companies F and I
- 100th Regiment, Ohio Infantry, Company G


The Ohio Obituary Index includes references to more than 1.5 million death, marriage and obituary notices.  What began as a project at the Hayes Presidential Center grew into a partnership with 40 public libraries throughout the state of Ohio.  Some of the listings date back as far as 1830.  In addition to newspaper obituaries, the index includes entries indexing church records, federal mortality indexes, family papers, etc.



Vital Records

Ohio Deaths, 1908-1953 Free name indexes and images at FamilySearch. Records include such information as birth date of deceased, city, county, and state of death, name of spouse if married, names of parents, maiden name of mother, name of informant, if deceased was single, married, windowed or divorced, occupation of deceased.

Societies and Libraries

Harris-Elmore Public Library

328 Toledo St. Elmore

Ottawa County Genealogical Society, chapter of the OGS

they meet at the Ida Rupp Public Library

310 Madison St. Port Clinton

Ida Rupp Public Library

310 Madison St. Port Clinton

Elmore Historical Society


Family History Centers

Web Sites

  • USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.
  • Family History Library Catalog


  1. The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).