The Ohio Genealogical Society offers its members the opportunity to join six different lineage societies:
First Families of Ohio (FFO)
Open to direct descendants of an individual who settled in the area now encompassed by the State of Ohio by the end of 1820.
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Century Families of Ohio (CFO)
Open to direct descendants of any person residing in Ohio from 1861 to 100 years prior to the current year.
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Settlers and Builders of Ohio (SBO)
Open to direct descendants of an individual who settled in the area now encompassed by the State of Ohio between 1 January 1821 and 31 December 1860.
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Society of Civil War Families of Ohio (SCWFO)
Open to direct descendants, or collateral relatives, of any person with Ohio ties who served in the Civil War.
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Society of the Families of the Old Northwest Territory (SFONT)
Open to direct descendants of any person who lived in the Old Northwest Territory prior to 3 March 1803.
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Military Order of the Daughters and Sons of Ohio (MODSO)
Open to any resident of the State of Ohio or direct descendants of any resident of the State of Ohio who served in the armed forces.
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