Hi Neil,
I am looking at old queries and here is a link to civil BMDS from 1864 to various dates, births to 1923; marriages t0 1947 and deaths to 1973.
Click on civil and sign in https://www.irishgenealogy.ie/en/
For living relatives you could post on the parish page of this site, also there are a lot of private Facebook genealogy pages based on counties and even local areas where you might find someone local to you relatives if they are in the area still.
Good Luck
Pat