Complex sentence: Russiaville became a Quaker settlement in the years before the Civil War, and a stop on the Underground Railroad could be found in nearby New London, then the location of the Friends Meeting serving the entire area.
Split into simpler sentences: Russiaville became a Quaker settlement in the years before the Civil War. A stop on the Underground Railroad for fugitive slaves in the antebellum years was located in nearby New London, then the location of the Friends Meeting serving the entire area.