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FamilySearch Wiki - Linn County, Iowa

Free online genealogical research guide for Linn County, Iowa. Free online genealogical research guide for Adair County, Iowa.

Genealogy Trails - Iowa - Linn County

Our goal is to help you track your ancestors through time by transcribing genealogical and historical data and placing it online for the free use of all researchers.

Linkpendium - Linn County, Iowa

Linn County Courthouse History

NACo (National Association of Counties) - County Explorer

USGenWeb

USGenWeb Archives