The small white fox-working terriers we know today were first bred by the Reverend John Russell, a parson and hunting enthusiast born in 1795, and they can trace their origin to the now extinct English white terrier. This line of terriers developed by John Russell was well respected for those qualities, and his dogs were often taken on by hunt enthusiasts. It is unlikely, however, that any dogs alive today can be proved to be descendants from Trump, as Russell was forced to sell all his dogs on more than one occasion because of financial difficulty, and had only four aged (and non-breeding) terriers left when he died in 1883.The Fox terrier and Jack Russell terrier type dogs of today are all descended from dogs of that period, although documented pedigrees earlier than 1862 have not been found, although several records remain of documented breeding by John Russell between the 1860s and 1880s. Further crossbreeding occurred, with Welsh corgis, Chihuahuas, and other smaller breeds of terrier.
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