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Researchers Helping Researchers!


Please browse our pages and consider donating your Jefferson County photos, family stories & favorite website links; whatever you'd like to share to aid other researchers.

If you have a Jefferson Co. family webpage, or blog and would like to have it listed here, please contact me at 

Lisa Gendron, County Coordinator


Jefferson County, MO Mailing List

Join other Jefferson County Researchers on the Jefferson County Mailing List. Browse or search the mail list archives for past discussions & cousins.


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1851 Map of Jefferson County, Missouri