If you're talking about an ancestor who was alive at the time of Pocahontas, you absolutely had about 4000 specific individuals who were your *direct* ancestors at that generation level (essentially at that time). Now a lot were the same person many times over - in other words, you descend from a number of people many different ways (since they often were staying in the same towns for a number of generations). You get less than a half of a half of one percent of your DNA from a single person (let's say, for schits and giggles, Pocahontas herself, or some king, or whomever). It's basically pointless to care about a single ancestor at that distance. Hell, the most recent common ancestor for all humans who have *any* European ancestry at all (even one ancestor in those 4000) lived about 1000 years ago - so stretch 1600 back to 1000 and there is not anyone who has a drop of European ancestry that doesn't descend from the same tree. Anytime people go on about one little part of a very distant heritage, just realize they are talking at best about one little drop of their genetic makeup or ancestry. Most of their lines (if their Southern families are from antebellum times at least) go in so many directions that they can't fathom or describe them accurately. My NE MS ancestry comes from tories, Irish refugees, Moravians, "Scots-Irish", poor farmers, con-men, a tiny blip of Native American, German, French, British, Welsh, tons of generic "White", "Foster", "Williams", "Williams", "Williams", "Evans", "MacDonald", "Smith", etc. My wife's families are much more recent, but not southern, and have very specific recent immigration lines, but she's not claiming to be from "Cherokee chiefs" two hundred years ago, or Mayflower families, or whatever.