If you enter
Hornby Road, Liverpool in google maps
Find the prison in satellite view
The cemetery is just behind it, at the entrance is a big field with no gravestones! but can see the rows of graves! taking the first row will be row 1 and first grave no 1 in each row from the entrance maybe.?
If you get a grave map it may help overlay an approx aerial view photo impression of the decease's final resting place R I P