Tidewater
     -Piedmont

Ulrich B. Phillips,
     -"The Central Theme of Southern History" (1928)
                -White Supremacy

Wilbur J. Cash,
     -The Mind of the South (1941)
               -Hillbillies and Millbillies

C. Vann Woodward,
     -"The Search for Southern Identity" (1958)