Certainly there will be if you go back far enough Chel. No doubt there will be some dogs from the USA in there and so many Labradors in the US go back to Ken Hunter's Receiver of Cranspire, who was born in 1981 Receiver won hit title in the UK before going to the US where he was a very popular stud.
Going back from Hyspire Shahli Hotter Than Blazes on the dam side you have the American dogs Hyspire Pipin' Hot, Hyspire Something's Amiss, Dickendall Arnold, Dickendall Ruffy, then you get to Receiver of Cranspire who I mentioned above. He’s also on the bitch side.
Behind the Rocheby line you get to If you go back far enough on the Poolstead line you get the famous Sandylands dogs Mark, Truth, Tan (Who almost single handed founded Labradors in Australia, Tweed, back to Ruler of Blaircourt. Tweed, born in 1958, was the great grandsire of my first Labrador, seen here with my sister’s youngest boy. (He's over 50 now!!!)
I can imagine life can be difficult for you. That's the advantage of the UK, it's so much smaller that I can visit a show or a field trial, and literally see any dog or talk to any breeder I want. Also, having been around in the breed for so long so many breeders either know me, or know of me. So things are so much easier here.
1- buy a puppy from a kennel that comes from littermates or they are somehow connected to the line I wanted. (mostly in EU)
2- find a kennel that offers stud service in the US.
3- If I buy a dog from a reputable breeder in US most if not all of them are sold with a limited registration (breeder determines that, can't show them in conformation and If bred they can't be registered)
Usually in the UK with endorsements on the registration, the breeder will lift the endorsements if certain conditions are met, such as hip and elbow scoring (good results) and maybe some DNA testing. Breeders don't want their dogs associated to poorly bred puppies, which is quite understandable, so really, all they are doing is to try to make sure the person does their best to produce good pups.
As to not being able to show, I've never heard of that in the UK, and cant imagine how that would work. No show secretary has the time to check up on every dog entered to see if there is any restrictions. To me, that kind of restriction would seem unworkable.
Interesting. Sounds a bit like our outcrossing rules, only different. As I remember the rules, outcrossing can only be done with the KC's permission, in order to try to reduce health problems, as in the case of the "Low uric acid Dalmatians." These were Dalmatians X Pointers. Many Dalmatians have a uric acid problems, the acid forming crystals in the bladder. Pointers don't have that problem, but have a similar appearance and temperament, so outcrossing would not materially affect the Dalmatian. The resultant pups would have an Asterix (*) after their name. Mating these first generation dogs back to pedigree Dalmatians would retain the Asterix, but mating the second generation dogs back to a pedigree Dalmatian and a breed specialist signing to say they appear true to type they lose the Asterix and are then considered pedigree again. Obviously this is not the same, but to my knowledge is the only reason for a dog not to be allowed to show in the UK. Simply the fact that it is considered a cross for the first two generations.
In the US there’s also multiple registries and different registries have different shows. It’s very complicated as I’m learning having joined an online group on FB for handling and showing. AKC, UKC for starters.
Yes, it is difficult to buy a US dog (puppy) due to registration issues knowing that I want to start my breeding program. I'd rather use a stud service, rather than buying a puppy from UK, RU, or UKR still in development in regards to HD, ED, etc.