We have records and maps on paper of all the known graves in the Churchyard.
We have now transcribed these records (not yet all the gravestone inscriptions) which you can download here, in the form of a spreadsheet that you can search or sort as you need. Sorting by surname brings together families of the same name. Sorting by section - plot brings together adjacent graves, often of families connected by marriage (and hence with different surnames), and the inscriptions often describe the connections.
Please note that the records include quite a lot of unmarked graves.