Hi davidft, thank you for your response.
From what I can see on the thread, seen in the round, UKWoman would be safe in her assumptions, given that the autosomal DNA results show a familial relationship thus allowing her to fill in the blanks using other methods (looking at family tree/records, etc.). Of course, to be absolutely certain, a paternity test would be necessary, however, the father would need to be living, so not much use to UKWoman (or to me, for that matter) as it could not be practically applied in this case. Also, there are other ways to establish a relationship, otherwise how did we do it before DNA testing?
Just for clarity, please be assured, it is not ire, just incredulity.