This isn't much of a help to you. You probably need to see his obituary in one of the local Dundalk papers (The Dundalk Democrat or the Argus).
This is his death notice in the Irish Press, 12th November 1975:
"BRADLEY (Haggardstown, Dundalk) November 11, 1975, in St. Luke's Hospital, Dublin, Anthony Bradley, late Donegal; deeply regretted by his loving wife May, brothers, sisters, relatives and a large circle of friends. R.I.P. Remains will be removed to Ballypousta Church this (Wednesday) evening arriving at 7 o'clock. Funeral tomorrow (Thursday) after 11 O'clock mass to adjoining cemetery"
Brendan