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Sponsored Topics. Union is a city in and the county seat of Franklin County, Missouri, United States. The population was 7,757 at the 2000 census. It is located on the Bourbeuse River. The city was founded in 1827 and is named after the ideal of political unity.
There seems to be a scarcity of published histories about Union County. A couple of partial transcriptions are posted in the Union NCGenWeb Archives: Sketches of Monroe & Union County, 1902. Also, there is good information available in this article: North Carolina History Project.