Sumter County is located in South Carolina’s midlands, about an hour and a half from the Atlantic coastline in one direction and from the Blue Ridge Mountains in the other. Named after General Thomas Sumter, the “Fighting Gamecock” of Revolutionary War fame, it’s a place like many in the historic Black Belt, the stretch of former slave-holding plantations that extends from Texas to Delaware. Sumter County has also been the traditional home to an intriguing community of dark-skinned people known …