Question: Which continent were the Australian Shepherd and the West Highland White Terrier breeds' ancestors located in?

Context articles: Black &amp; White (whisky)
Fox Terrier
Craniomandibular osteopathy
Airedale Terrier
Australian Shepherd
West Highland White Terrier
Highland, Denver
Teddy Roosevelt Terrier
Scottish Terrier
Burneze Geordie Girl

Black & White is a blended Scotch whisky.
 It was originally produced by the London-based James Buchanan & Co Ltd founded by James Buchanan.
 Originally known as House of Commons (after the British House of Commons), its nickname, referring to the black and white labelling, was eventually adopted as the official brand instead.
 The brand's motif (featuring a black Scottish Terrier and a white West Highland White Terrier) was conceived by James Buchanan himself during the 1890s.
Fox Terriers are two different breeds of the terrier dog type: the Smooth Fox Terrier and the Wire Fox Terrier.
 Both of these breeds originated in the 19th century from a handful of dogs who are descended from earlier varieties of British terriers, and are related to other modern white terrier breeds.
 In addition, a number of breeds have diverged from these two main types of fox terrier and have been recognised separately, including the Jack Russell Terrier, Miniature Fox Terrier and Rat Terrier.
 The Wire and Smooth Fox Terriers share similar characteristics, the main differences being in the coat and markings.
 They have been successful in conformation shows, more prominently in America than their homeland.
Craniomandibular osteopathy, also known as lion's jaw, is a developmental disease in dogs causing extensive bony changes in the mandible and skull.
 In this disease, a cyclical resorption of normal bone and replacement by immature bone occurs along the inner and outer surfaces of the affected bones.
 It usually occurs between the ages of 3 and 8 months.
 Breeds most commonly affected include the West Highland White Terrier, Scottish Terrier, Cairn Terrier, and Boston Terrier.
 It is rare in large-breed dogs, but it has been reported.
 Symptoms include firm swelling of the jaw, drooling, pain, and difficulty eating.
The Airedale Terrier (often shortened to "Airedale"), also called Bingley Terrier and Waterside Terrier, is a dog breed of the terrier type that originated in the valley ("dale") of the River Aire, in the West Riding of Yorkshire, England.
 It is traditionally called the "King of Terriers" because it is the largest of the terrier breeds.
 The Airedale was bred from the Old English Black and Tan Terrier (now extinct), the Bull Terrier, the Otterhound and probably some other Terrier breeds, originally to serve as an all around working farm dog.
 In Britain this breed has also been used as a war dog, guide dog and police dog.
 In the United States, this breed has been used to hunt big game, upland birds, and water fowl, and serve in many other working capacities.
The Australian Shepherd, often known simply as the "Aussie", is a medium-sized breed of dog that was, despite its name, developed on ranches in the Western United States during the 19th century.
 The dog was developed from a breed or breeds from the Basque country in Western Europe.
 It was brought by Basque people to the United States, these people had previously lived only briefly in Australia before moving to America.
 The dog otherwise has no connection to Australia.
The West Highland White Terrier, commonly known as the Westie is a breed of dog from Scotland with a distinctive white harsh coat with a somewhat soft white undercoat.
 The modern breed is descended from a number of breeding programs of white terriers in Scotland before the 20th century.
 Edward Donald Malcolm, 16th Laird of Poltalloch, is credited with the creation of the modern breed from his Poltalloch Terrier, but did not want to be known as such.
Highland is a distinct city-center neighborhood in Denver, Colorado bounded by West 38th Avenue to the north, a Union Pacific Railroad line on the east, the South Platte River to the southeast, Speer Boulevard on the south, and Federal Boulevard on the west.
 The misnomer Highlands is sometimes used to refer to two separate city-center neighborhoods, Highland and West Highland, in Denver, Colorado, although the two neighborhoods are distinct.
 Highland and West Highland are both in the area that is referred to as North Denver.
 is located immediately northwest of downtown.
 Note that the Highland neighborhood association has a slightly different definition with the easternmost boundary stopping at I-25.
 And the West Highland neighborhood to the immediate west of Highland, with the borders of 38th and 29th Avenues on the north and south and Federal and Sheridan Boulevards on the east and west.
 To distinguish between its immediately adjacent neighbor, West Highland, Highland is sometimes referred to as East Highland, Lower Highland or LoHi.
 The two together are casually called "the Highlands," a term which often falsely encompasses other Northwest Denver neighborhoods such as Jefferson Park, Sunnyside and Berkeley.
 Realtors have particularly pushed the inclusion of the recently gentrified Berkeley, located directly north of West Highland, as part of the Highlands, sometimes going so far as to refer to Berkeley and parts of Sunnyside as the "Upper Highlands".
 To add further confusion, within the Highlands neighborhoods there are several historic designations of various degrees, including Potter Highlands, Scottish Highlands and Highlands Park.
The Teddy Roosevelt Terrier is a small to medium-sized American hunting terrier.
 Lower-set with shorter legs, more muscular, and heavier bone density than its cousin the American Rat Terrier.
 There is much diversity in the history of the Teddy Roosevelt Terrier breed and it shares a common early history with the American Rat Terrier, Fox Paulistinha and Tenterfield Terrier.
 It is said the Rat Terrier background stems from the terriers or other dogs that were brought over by early English and other working class immigrants.
 Since the breed was a farm, hunting and utility dog there was little to no planned breeding other than breeding dogs with agreeable traits to each other in order to produce the desired work ethic in the dog.
 It is assumed that the Feist (dog), Bull Terrier, Smooth Fox Terrier, Manchester Terrier, Whippet, Italian Greyhound, the now extinct English White Terrier, Turnspit dog and or Wry Legged Terrier all share in the Teddy Roosevelt Terrier's ancestry.
 These early Ratting Terriers were then most likely bred to the Beagle or Beagle cross bred dogs (for increased scenting ability) and other dogs.
 Maximizing the influences from these various breeds provides the modern Teddy Roosevelt Terrier with a keen sense of awareness and prey drive, an acute sense of smell and a very high intellect.
 Although they tend to be aloof with strangers they are devoted companion dogs with a strong desire to please and be near their owners side at all times.
The Scottish Terrier (also known as the Aberdeen Terrier), popularly called the Scottie, is a breed of dog.
 Initially one of the highland breeds of terrier that were grouped under the name of "Skye Terrier", it is one of five breeds of terrier that originated in Scotland, the other four being the modern Skye, Cairn, Dandie Dinmont, and West Highland White Terriers.
 They are an independent and rugged breed with a wiry outer coat and a soft dense undercoat.
 The First Earl of Dumbarton nicknamed the breed "the diehard".
 The modern breed is said to be able to trace its lineage back to a single female, named Splinter II.
Burneze Geordie Girl (born 14 July 2014), also known as Devon, is a West Highland White Terrier show dog who won Best in Show at Crufts in 2016.
 She was bred and owned by Marie Burns.