Hi
Thanks for your reply. It will certainly be very difficult to prove anything.
No information was given on my mother in law's birth certificate and very little verbal info was given, except that he was called Ted.
We don't know if they lived together, was a fling or a one night affair. We are trying every angle we can in the hope to find something. Like you say though, proving paternity would be virtually impossible even if we did find someone of that name living with her.