Queen Elizabeth does. Everybody probably does if you could trace your ancestry back far enough.
Andrew Jackson's family had recently come to the colonies--it's not likely he had any black ancestors in Scotland or Ireland. There was a rumor about one of Harding's ancestors having black ancestry, but that may have been made up by a neighbor who didn't like the man. Jefferson was born in 1743, just decades after African slaves started to become numerous in Virginia--if any of his grandparents or great-grandparents had been black he probably would have looked like someone of mixed-race ancestry.
Supposedly all modern-day humans are descended from African ancestors (the "out of Africa" theory). Anyway the Garden of Eden was in Africa. I learned that from one of my classmates in high school. The Bible says that Adam named all the animals, so the Garden of Eden had to be in Africa for him to name the lion.