Thanks for the responses.
I think a special memorial would be erected at a location agreed between the cemetery and CWGC with wording like "Known to be buried in this cemetery", or the name would be added to a screen wall if there's already one at the cemetery
If all goes well and he is commerated then at least he will be remembered in some form. I know of two other cemeteries in Bristol that have a screen wall as suggested.
I am not sure if there is a screen wall at Greenbank Cemetery. I'll have to look into this in time and see what can be done within the cemetery.
The area where my GGF is buried is one of the oldest parts of the cemetery and over time it looks like all the headstones have become unstable or in desrepair.
They did say that after 100 years some areas are cleared of headstones and it is usual practice.As far as I'm aware the area is to stay as it is as it lies next to a wildlife
section. I hope that is correct anyway as there are 7 members of my family in the same grave the earliest burial being 1859. My GGGF took a lease on the plot (for 75 years)
in1889 and with the additional 25 years, that could have been taken, would only take it up to 1989. I might be wrong but feedback I've had is after that initial 100 years you loose
all authority over the plot. Obviously it is easier to maintain if the area is flat and there are no obstructions ie; headstones.