Nice to hear from you, I have been looking at all your postings on this site, and very impressed.
I am very lucky to live in Northumberland, so mainly visit sites in the county.
The Dwr connection may be a shot in the dark, but there are a few place names here which are derived from Brythonic celtic. eg Carry Coats is belived to be from Caer-Y-Coed, the Hill fort in the wood. and Mindrum from Mynydd (mountain) and Drum (a ridge) another interesting one is Ingram Glidders, the scree slope below Brough Law hill fort in Breamish valley. Glydyr ( I may have spelt that wrong) in welsh is a scree slope, and a mountain range in Snowdonia.
I went to school in N Wales so picked up a bit of the lingo!
Great to be in touch.
Gavin.
PS Yes the Little Church--very intreging.