I feel there were two types of the breed in America. The farm/hunting dog and the pit dog. Farmers and hunters in the countryside needed a reliable and dependable dog. It is my opinion that they crossed bulldogs with hounds and other farm dogs. This breeding was done to produce the desired dog(s) that the farmers/hunters needed the dogs to do. The pit dogs in my opinion were bred close to true. There may have been cases were a stray may have slipped in and bred to one of the females that were bred back into these dogs. Because in that era it was perfectly acceptable for a dogs to run loose. It was also frowned upon to have a bulldog tied up.

The predecessors of all terriers is the White English and the Black & Tan. The White English is the predecessor to the English Bull Terrier, Fox Terrier, Old Bedlington Terrier, Jack Russell Terrier. The Black & Tan is the predecessor to the Manchester Terrier, German Pincher, Airedale, Welsh, Patterdale, and etc...

So my question is if a A.P.B.T. is a bulldog/terrier cross. Why doesn't it come from the two terriers who produced all Terriers?

White English