It would be very hard to recognize a purebred Yorkshire Terrier from the 1870's. The breed's fore father, Huddersfiled Ben, came from Yorkshire, which accounts for the name. No exact records exist of what went into Huddersfield Ben's pedigree. Most Yorkshire Terrier information sources guess that the breeds included were Scottish Terrier, Clydesdale Terrier, Paisley Terrier, Skye Terrier, Waterside, Maltese, Manchester Terrier and Black and Tan English. Since Yorkshire Terriers did not need a lot of exercise, made great watch dogs and were affectionate, they became in demand for house pets. They have been bred smaller and smaller over the decades.