You might want to contact Ian and Wendy Openshaw of Openshaw Gundogs in Coventry. They're well-known for their Rytex line and are experts in breeding and training. They could help with information about the pedigree you're interested in.
White tailed deer can cause problems in the ecosystem because there are so many of them and they eat a lot. To help, we can have some people hunt them, fix up their homes, and put up fences to protect certain areas.