New Horizons Genealogy

"Specializing in New England and New York Colonial American Ancestry"

Jefferson County Illinois Genealogy and History

County Seat: Mount Vernon

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Search Free Jefferson County, Illinois Genealogy and Family History Records Online including census, cemetery, vital, military and other genealogical and historical records that can be used for your family history research.

Jefferson County, Illinois genealogy and family history page is a place where you can come in and research your genealogy and family history. We also do our best to provide a history of the area, to provide you with an overview of the time in which your ancestors lived.

We regret that we are unable to do personal research for you. All genealogical and family history records we come across are being added to this website. Please keep checking back.

Jefferson County Genealogy Records

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