There is a Snelling. It could be a family member since it sounds like they do business together.
It's just a guess, of course, but Missouri is the puppymill mecca. They sell their puppies to brokers from all over the country. I live Raleigh, North Carolina and there is a grooming salon here that sells puppies out of the backroom. She claims to have "a friend" in Missouri she gets her puppies from.
I forgot you have to have gotten your puppy from a pet store to have them do a search. Sorry.
You may never know where she came from, but it really doesn't matter in the long run. She's your baby!