Our great hope is that many more Bradts will have their DNA tested at least at the 25 marker level. When we have more Bradts contributing their DNA will we be able to draw surer conclusions as to whether some descendants of Albert and Arent share the same identical DNA, whether one can tell whether descended from a particular brother, and when a particular mutation occurred. We know already that different Albert lines have had a mutation in different places, but not in what generation and thus how many descendants are affected.