Yes, the farther back you go the worse it gets. What happens often is that people have built their tree based on a list of names with no dates available, and done a standard "date estimation" based on the parents being an average 19 and 22 when the first child is born. Do that for a few generations and then suddenly you will find a set of parents WITH dates, and realize you are WAY off. I have one family in my database where someone had the granfather and grandson, with the same first name, married to the same woman! They really have that one turned around, and I am not sure what to do with it yet. Someday we will have a good laugh about it with the people we're researching! Terrie