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A History of Clay County, Indiana: Closing the First Century's History of the County, and Showing the Growth of Its People, Institutions, Industries and Wealth, Volume 1

Ebook by William Travis, 1909.

A History of Clay County, Indiana: Closing the First Century's History of the County, and Showing the Growth of Its People, Institutions, Industries and Wealth, Volume 2

Ebook by William Travis, 1909.

Counties of Clay and Owen, Indiana : Historical and biographical ...

Ebook by Charles Blanchard, 1884.

FamilySearch Wiki - Clay County, Indiana.

Free online genealogical research guide for Clay County, Indiana.

Genealogy Inc. - Clay County, Indiana Facts, Genealogy, Records & Links

Linkpendium - Clay County, Indiana

NACo (National Association of Counties) - County Explorer

Official County Web Site

USGenWeb

USGenWeb Archives - Clay County, Indiana