Mississippi Department of Transportation: PDF map of Union county roads. [Adobe Acrobat Reader required]National Register of Historical Places - Union County: Directory of historical places and cultural resources for the county. Offers historical significance, architect details, and related information.The Political Graveyard: Union County: Database of political history and cemeteries, with brief biographical entries for political figures connected to the county, living and dead, from the 1700s to the present.Union County Mississippi USGenWeb: A history of the county and other resources for genealogical researchers.