We'd better not confuse the issue by mentioning that some folk believe that the black colour comes from Scottish terrier blood, the Chocolates come from a Springer spaniel accidental mating, the white chests, feet and toes comes from a Sealyham outcross and that a very influential sire in the last few years had JRT blood in it from the great line of Mr Duggans.
OH, and then the fact that a lot of black terriers here in Ireland in the last 15 years or so had Sam in them, who was out of a pure border called Dandy. When a son of Sams was sent to stud in the states (for $2000) the seller forgot t