This county is available for adoption. For info, Contact the State Coordinator

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Welcome to the Ottawa County OHGenWeb project.


More than a century and a half has passed since Ottawa County, in the middle of the "Black Swamp" of NW Ohio, had a reputation as having some of the toughest wagon road between "Cleaveland" and Maumee.  Gradually, the swamp was drained, the timber harvested and the stumps removed.  Now the area boasts some of the finest farmland found anywhere as well as the recreational playground of Marblehead, Lakeside and the Erie Islands.

If you're researching your Ottawa County ancestors, or just interested in the unique history of Ottawa County, this is the place for you.   If you're an experienced Ottawa County researcher, or just have something that might be of interest, you're invited to share genealogical or historical information you have about this county and its people with others through this site.

Ottawa County was created in 1840 from portions of Sandusky, Erie and Lucas Counties.

Just passing through?

Visit our "quick tips" guide for finding Ottawa County information on the internet.


  • Indexed images of The Ottawa County Exponent from 1897-1957 are now available via the Oak Harbor Public Library website. 

  • Microfilms of the Toledo News-Bee from 1903-1940 and the Toledo Blade from 1940-2007 are now available on-line through Google News

  • Indexed listings and images of Michigan Death Certificates from 1900-1940 are now available via the Seeking Michigan website. 

  • Images of Toledo Diocese Catholic Church Records are available via the FamilySearch website. 

  • The Harris-Elmore Public Library has begun digitizing some of their Local History Collection.  

  • Indexed listings and images of Ohio Death Certificates from 1908-1953 are available via the FamilySearch website. 

A sincere "Thank you!" to all who have contributed content to this site.

Many thanks to Bonnie Walsh and to Dan Krupp, previous Ottawa County Coordinators, who paved the way.

Read about the mission of the USGenWeb and OHGenWeb projects.

Quick Links

This site (c) 2005-2019 by Greg Knopp.
Predecessor sites (c) 2005 by Bonnie Walsh, (c) 1996-2004 by Dan Krupp

Cover photos include the old Graytown School (abt 1930), a wedding at Trinity Church in Elliston (abt 1915), and an old Benton Township Farm (abt 1900).  
Map courtesy of the Library of Congress.

ALL RIGHTS RESERVED: The compilation and presentation of information found on this website is protected by the US Copyright Law, Digital Millennium Copyright Act of 1998. Individual genealogists may copy and use the information found on this website for personal use only.  It is not to be copied or altered in any way for commercial use nor for representation or inclusion on another webpage without the written permission of the webmaster.

You may link freely to this website using the following:

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Every effort has been made to ensure that information found on this site is accurate.  However, you are encouraged to check primary sources for further information and to verify the accuracy of data transcription.

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