Hi Laurence,
No reply to yr question so far but did you know you can see Rhaa via google earth? link here:Rhaa.jpg (291.5 KB) (I hope).
And yes, your putting details of all the Kneale's into civil register did amuse me - but it also impressed/amazed. Its terrific that people do that kind of thing, and voluntarily transcribe gravestone inscriptions and put them online to help others.