Otsego County, Michigan Genealogy
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- 1 County Courthouse
- 2 History
- 3 Places/Localities
- 4 Resources
- 5 Societies and Libraries
- 6 Web Sites
- 7 References
1840--Otsego County was created 1 April 1840 from Mackinac County. Formerly Okkuddo County, until name changed to Otsego 8 March 1843. It was attached to Alpena, Mackinac, Cheboygan, and Antrim Counties prior to organization 12 March 1875.
County seat: Gaylord 
Societies and Libraries
- USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.
- Family History Library Catalog
- The Handybook for Genealogists: United States of America,10th ed. (Draper, UT:Everton Publishers, 2002).