
Hi Catherine, I work with Weimaraner Rescue and when we take a dog into rescue we ask for all the papers, and we keep the papers so that they cant be used by anyone else.... this is how I have the actual certificates issued by the Dog Lovers Registration Scheme. I have one set of papers for one dog from DLRS and the KC too! so that particular litter was registered with both. There are 2 'breeders' that I know of breeding weims back to back litters and one litter is registered at the KC and the next at the DLRS!! That how some people get around the 1 litter per year registered at the KC.
So I would think that unless you can find someone who has bought a GSD from Mayfield with a DLRS certificate and find out who the parents are registered to, then there wont be much else you can do! If you want to see a copy of the certificate, so you know what you are looking for, then e mail me and I will post you a copy.... I dont have a scanner!
Best Regards
Lynn