wow! thank you so much - so it is the right family!
Can I ask how/where you got the details of the marriage? So I guess from here I need to find members of the rest of the family to see whether anyone can remember him coming back to Ireland in the 60's -although I guess that is a shot in the dark. Are there any indexed records of deaths in Ireland? One school of thought is that he went to London for a while before returning to Ireland when he left the family in the 60's. Or is there any other avenue I could try?
Again, any help is gratefully received - I can't believe I didn't know about this site before!