I, too, have a SC cousin named Donald Sanders. He's gone now, but his son, also Donald, lives in Arizona. My Sanders migrated from Orangeburg District to Ritter, SC in Colleton County. the old plantation home, built in 1825, is still occupied by a second cousin, "Bink" Sanders.
My middle name of "Cotesworth" comes from my grandfather, Cotesworth Pinckney Sanders who was born on the old plantation.
Lewis C. Emerson