South Carolina.
Ah ---the religion that came from Africa with the slave trade, a mixture of Christianity and the Old Gods. What we call Voodoo that has spread all over the south west and well into South America.
The follower's consider themselves Catholics as the slaves took on the names of the Saints to rename them Chango and Santa Barbara to escape the slave owners from forcing them to renounce their old Gods for Christianity.
Google the Brownsville Texas for the number of online stores that sell the not only religious items for sale but also religious classes on the faith.
So this grandmother to the presidents daughters was educating them in the old ways. Makes me wonder how she received her education to pass on.