Most folks I know aren't interested(truth be told) about their ancestors much beyond their great Grandparents. Me included. Once I get back to my Grandparents parents, that's as much as I can relate to. I have a family tree somewhere and if I set aside a month, I bet I could find it around her someplace. But, it doesn't really mean anything to me. I know very few people who actively try to trace their family tree back beyond their Grandparent's parents.
Jerry