If you remember any of her Champions' names, maybe you can find her through the AKC...I seem to recall being on a page where you can look up the dog...might be another starting point for your search. They also have resources that may be able to help you:
American Kennel Club - akc.org
Here is their "Answer Center"...there is a link for contact information:
American Kennel Club - The Answer Center
You might also do web searches for the Champions' names if you remember them.