Looking at the cremation date that jonw65 found, there is a notice, not in the Journal but, as I suspected, in the Evening Chronicle on 5th Nov 1970, page 2 col 1
NB Prior to having a possible cremation date nothing I tried as a search term brought up the entry, so without a ball park date its often nigh impossible to find an entry, depending on how clear the scan is.
Will PM the details as it mentions her children and they may still be alive.
Boo