I was wondering how they can do DNA back to like when your ancesters came. Is there a way and how do they do it. There is a lot of discreperancy about who would have been the next in line for the Earl of Sterling. Can they do DNA tests now a day to find out if someone is really conected to the original Earl and How they did it.
There is a site of McAlisters on facebook. They may be able to help you with your questions.