Have any of the male descendants been matched to the Bennett s using DNA? Do you know of any baptismal record for George Powers? I had a Shupe daughter who had a child out of wedlock and he was baptized in the church with her last name. However, in some later records, this child is identified with the father's last name. Perhaps, it is the opposite in your case. The DNA registry should be able to tell the person tested if there is a match in the Bennett line or any other surname. It would be worth a try.