Thanks for your reply.The death was 1965 in Hendon Middlesex
For Yvonne D.Griffiths 5e 610.I think she was the wife of my Grand-uncle Patrick E.A Griffiths but I can't find a marriage which ties in (would have been about 1925 onwards)
There are a few possibilities on Ancestry but none with the name or initials for 'Yvonne'So I thought could try tracing her via her maiden name.After 6 months of searching I am ready to try anything.Any suggestions welcome