[Bainbridge]

Hmm. Very interesting.
The South comprises many states which had little to no Roman Catholic presence. Virginia, North and South Carolina , Georgia, Kentucky, Tennessee come to mind.
Florida and Louisiana would be the only two which were in any way influenced by Roman Catholicism, and those were a non English speaking (Spanish and French, respectively) origin. The colonial period was not (outside of Maryland) much influenced by Roman Catholicism. In fact, I believe only one signer ( Carroll) was a member of that church.