Hi gledhill
It is murder trying to locate graves in PP.
Lots of headstones have been removed over the years, some were even removed after the great flood.
If you are looking in the CofE paupers section (parts of) D,K,L,M. Lots of headstones are buried upto 6" below the grass, just take a spade and uncover it.
The main problem with them sections is the plot number sequence is out in a few places.
But hey-ho it's fun hunting
Ken