Carolina in the Civil War in The Unvanquished (Location)

When Colonel Sartoris writes to tell his family where he and his troop are "fighting" (189) and when Louisa Hawk writes Granny to say that she has just found out where Drusilla is (149), apparently they both say "Carolina," without specifying which Carolina. In the late fall of 1864, it's most likely South Carolina, where Sherman and his army were completing their March to the Sea.