Her mtDNA is probably L3 or 4. I couldn’t go back further (or is it farther) than her great-grandmother due to the brick wall of slavery. I know, at least I think, I read on some pop gen site that there’s a possibility that her great-gran was of Senegambian royal descent.
It was long surmised by older Louisiana historians, all now deceased, that when you saw a slave with the name Caesar it meant they were from royalty in Africa. It’s was even rumored, in the NOLA rags of the time, that the original Dr John, Vodun practitioner & coffee shop owner, John Mantenet (spelling varies) said he was of royal descent in Africa, which is why he was a Free Person of Color in 19th century Louisiana. No I’m a Luddite & can’t link, but I’m a trained ethno-historian.