The breeder our last 3 boys is in Southern Oregon just off of I-5 about 70 miles North of the California border. Here is her website: Foxfire Dobermans - Breeder-Owner of AKC Top Producing Doberman Pinschers
And her Facebook home page: https://www.facebook.com/FoxfireDobermans/
The bitch at the top right on the Facebook page is "Jewelia" (GCH Foxfire's Tell Me About It). She is the Dam of our 5 yo boy.
Best to you and good luck in your search. Also... Kudos to you for doing your research!