Hello Girl Guide and JenB, many thanks for your replies. I decided yesterday to do the legwork and spent half a day at Saltwell crematorium. Of course not a sole around (it was Friday afternoon and the pub would have called them) so I started off trying to find the oldest graves (as you said Girl Guide it opened in 1905). Finally came across a section of similar era gravestones and with much walking found that they were spread over 7 sections of the cemetary and in no particular order, it was like "we'll have that plot over there thank you". Of course with most cemetaries a lot of the old graves have no information now, their headstones are either missing or lying down with the inscriptions facing down, trees, bushes or ivy growing on the plot and covering headstones or the elements have made the headstone impossible to read. With about 20 graves to go believe it or not, nestled under a spreading chestnut tree (it mightn't have been but it sounds good) my eyes came across the words I had been looking for. To be honest I had given up hope and was going through the motions, you should have seen the smile on my face!!!! The headstone is in very good condition and the grave contains not only my G grandparents but also their eldest daughter who died prior to her mother dying. No one will have visited the grave in probably 50 years or so so I will go back and place some flowers there, I'm sure in their own way they will be delighted that a family member has found them.
I think Murphy's law of looking for gravestones is to start at the end and work your way to the beginning!!!! Another one off my family history bucket list.
once again many thanks. PaulT