Hi folks, just came across this old thread, I can clarify it if anyone still cares
The 'Exmoor Lurcher' are a type as suggested. Bred on Exmoor originally by Tom Farthing (a man who's life it would take a lifetime to tell you about), now bred by his daugther Jane Farthing. Jane also produces and sell the collars found on ExmoorLurcher.co.uk.
The dogs are generally a cross between Deerhound for size, Greyhound/Whippet for speed and Bedlington Terrier for robustness.
Jane breeds them in small and large size Mines the latter.
Some photos:
Mine, Dougal.
Family gro