Hi there,
I know this is a little strange, but I think your grandmother was married to my dad.
I believe that your dad was one of three siblings and I was in contact with one (and his family) prior to his death a couple of years back.
If I am able to offer you any help at all, please just ask, as I am also looking for answers myself.
You are correct with the name Paul and there was also Julia and Anthony.

I'm new to this site (after finding you by googling your grandma's name) and have got no idea at all how to get in contact with you. Like you I have only been given little information.
I hope this isn't too much of a shock to read.
Take Care.
Fozi