Are you sure on the secession planning? Abbeville, SC is noted as the location of the first secession meeting. Pretty much at the end of Magazine Street (also the street where most of Sleeping With a Stranger was filmed).
Abbeville claimed to be the first but most accounts have now been revised to list Chesterfield as the site of the first meeting. Chesterfield was wiped off the map by Sherman and some historians say this was because Sherman had a special hatred for the town because the first secession meeting was held there. Most records prior to the war were burned along with the courthouse. I always had thought the first secession meeting must have been held at Charleston until recently. When I was growing up the only things Chesterfield county was famous for were watermelons.