Hmmm, what associations are there? The only one I can think of is "The Night They Drove Old Dixie Down":
Virgil Caine is my name and I drove on the Danville train
Til Stonemans Cavalry came and tore up the tracks again
Back with my wife in Tennessee and one day she said to me
Virgil, quick come see, there goes Robert E. Lee
I think that's the only reason I think of it as Southern.