Glyn.
I agree, it would be interesting to get the full story. A lot of questions could be answered.
If Mr Nuttall's written pedigree for Judy in 1975 is taken back through Mr Breay's line to 1920 then its hard to see where his Grandfathers Fell x Bull came in.
Buck / Breay did line breed the Dog's sire / Dams Grandsire,
but they kept going out to Hunt kennels for stud dogs.
Coniston, East Kent, Bedale, Ulleswater, Cockermouth etc....
Up to the 1960's there is every type of terrier in the mix.
White, Fell, Border, Brindle, and all of these crosses.
Judy Pedigree Image -01.jp