Well, I had a light bulb moment.
I knew there was a relation still in the area, but couldn't get in touch with them.
So I went on to
www.192 bought a few credits and searched for the name of the cousin.
Found just the one name in the area, called the phone number and it was her!!
I just wish I'd done this years ago.
She has just confirmed my dad was adopted.
Originally called Murphy from a Belfast home/orphanage.
I'd have never found that out if I lived to be 100.
Thanks to everyone for their help & suggestions, it was greatly appreciated.
So now I start a new search.
It's so addictive, just as well I enjoy it.