Dear Dave,our local library only has the Western Mail on microfiche.
I was only able to find a little death notice in the BM+D,
It simply said; Ash Brian died tragically 27th November,son of Win and stepson of Roy Ridout,funeral 3rd of December at St Tielos church,burial at Western Cemetery Cardiff.
I would suggest that you ask your friend where Brian Ash originated,and try the local papers there,or perhaps you could find out if Cardiff library has back copies of the South Wales Echo,sorry that I could not be of more help,Regards Bethan