Hi Lyndylooking,
I am not entirely sure I can help, but I am interesed in telling you something which may or may not be relevant. My mother's (deceased) surname was Dinan. She was the oldest of 8 children. She was born in NEW JERSEY c1927/28. Her father, Michael Dinan ( I think he came from the Cork area), was a businessman in New Jersey, but returned to that part of Ireland to talk his brother (I don't know his name but I can try and find out) into returning to Amercia to join him in business. Unfortunately, Michael (my grandfather) died suddenly of an infected appendics. So my grandmother and her children (my mother) were left in Ireland. This would be around 1936/37? I know they stayed in Cork, as my mother than met my father, Gerald Clifford either in Cork or Kerry. My father came from Carchiveen (Ring of Kerry).
At this stage, I have only traced my father's family back to the 3rd generation, but only vaguely and only on the Clifford side; this is because a lot of information was left by my uncle Edward Clifford (well-known Irish writer also known as Sigerson Clifford).
Now I am sure my maternal grandfather's family did come from Cork.
I am searching this side too, so may have some more information.
Please feel free to reply to me or email me.