Genetic genealogy is the brave new frontier of family history research. Many people’s ancestors left little in the way of a paper trail. Depending on the country, some left none at all. Without documents, it can even be difficult to say much of certainty about someone’s basic ethnic ancestry. DNA tests thus can not only fill in gaps and prove relationships where records don’t exist. They can and do open up vast new vistas of research and give us clues – and sometimes more than just clues – about our deeper origins.