As a new chum to Australia, my family, from the records, is from either the north east of England, of East Anglia.
Years ago, the matter was discussed at home, and the family legend is that paternally we are English, and maternally Roman! There is no way the later could be proven, even by DNA testing, as from the results so far shown, there would be Italianate ancestry anyway.
OH's results are very similar, with Irish convicts on one side, as proven by records, and Scottish on another,again, proven. There are rumours that there is some Spanish on her maternal side, but back in the 1500's, so how would DNA prove that, if there are no records to follow up?
Just had a thought about a woman I worked with years ago. A Philipina, with about 10-12 siblings, all of whom had different physical features, due to the mixture of races in the Philippines