In addition to the AKC site, there is a show dog site called Infodog. This is what their breeder directory showed for the state of California on Silky Terriers:

InfoDog's National Breeders Directory
4 Silky Terriers breeders found in CA.

CITY BREEDER NAME
Madera Bron, Kathleen
Ridgecrest Gagliardi, Marge
San Bernardino Grove, Connie
San Jose Martin-Wojtek, DJ

If you go to there site it links you to more info on each.

breeder directory by state