Hello, have you tried with the Yorkshire terrier club of America? Or the AKC web site? there are many links there.
Anyway, no I do not know those breeders but I know a few in california.
Here the list:
Dolce Sinfonia
www.dolcesinfonia.com
Solo Divo
www.solodivo.com
Wee-R-Yorkies
www.weeryorkies.com
Vassae Square
http://www.vassarsquare.com 