I think you can't go by what your friend has 'remembered' to trace Charles Brady. So far they seem to have claimed he was born on a certain date in 1898 (based on death index perhaps?), a younger sister 'Rosaleen' (I have failed, so far, to find a her in census records or suitable match on Irish Genealogy for her death (or birth) using Ros* as the first name) and now a father called 'Patrick' which is a totally different family than the Charles born in 1898.
Usually one would work back through available records but since the death isn't quite clear-cut it might be better to start with Charles' marriage- if name of wife is already known- to see father's name and occupation.
