Jeanie your pup is cute.
Here is a few interesting links.
One for Sue based on using horse's in the coat color.
"More About Color And Texture (part III)" by Hugo Ibanez-Hornung
Yorky Club Magazine - United by passion for Yorkies.
Mrs. Gordon (Wildweir), the most experienced and successful breeder in America (look at my article, The Yorkie Club Magazine, #8 - Nov. 2007) was willing me her copy of The Color Of Horses, that gesture along was a privileged but to top that, she also included the original copy of the treatise What colors a Yorkie written by her late sister Janet Bennett, based on this particular book. I was familiar with this treatise, I was present when it was red for the first time by Mrs. Gordon at a Seminar at The Yorkshire Terrier Specialty in California in the 70’s.
Number 2 Yorky Club Magazine - United by passion for Yorkies.
More about Color and Texture" by Hugo Ibanez
Opinions from Joan Gordon, Roberta Rothenbach, Mary Ann Durrer and others.
And a history lesson toward the end of article
In 1845, one of them was described “resembling a Scotch (not Scottish) terrier, weight about 8 or 9 lbs., with good terrier head and eye but with a long body. The legs and muzzle only were tanned and hair on the body would be about 3 or 4 inches.” His mate was described as “a drop-eared Sky under 12 lbs with plenty of coat of blue shade but destitute of tan on any part of the body.” The third dog to play his part in the breed’s foundation was “a bitch, an old English Terrier with tanned head, ears, legs and sort of grizzle back.”
Most of these English Terriers also had white markings.
These genes from these dogs are the beginning of our breed. It seems that after 163 years, those initial genes would have disappeared or have been diluted; apparently, they did no disappear, they just laid dormant, in sleep mode.
Some canine experts believe our purebred dogs are locked in a genetic trap due to the evolutionary and hereditary process. What does it all mean? It means that after so many years it is difficult to eliminate influences of breeds used in early foundation stock. Why? Well, it could be argued that at the beginning all were somewhat inbred, as any given breed would have a relatively small member of founding sire.
What are the consequences?
Well, as you can see we are attempting to breed the perfect dog from imperfect ancestors. 163 years seem legendary, but, genetically, Yorkies are newbies (babies) As you can see our ancestors were “tutti frutti” which makes our breeding more complicated. Nevertheless, considering all the odds, we have succeeded in most of the elements of type. All we have to do to reassure our success just take a pick of pictures of Yorkies appearing in books and magazines from the last century, it would seem – to our reality now – that many were just pets.
No one knows better than you that as much we have progressed, we can not get complacent, still the hill that we must climbed is too steep.