Donal replied to my original post earlier. Ena was Donal's great-aunt. That makes you and Donal 1st cousins, once removed. Donal is the grandson of George Palcic, who apparently was the oldest brother of your mother. I hope this helps.
I have not established a connection between my family line and yours yet, but I suspect our Slovenian Palcic family extends back to Croatia somewhere before 1567 (when the first Palcic is mentioned in church records in the Loz Valley (Vrhnika) in what is now Slovenia.