I can see why someone would think there was Terrier, but I'm not so sure about Basenji. (The only way to know for sure is to do a DNA test.) Both of your dogs look very similar. What breed, or mix, is the older one?
Hi Chellie-
We had heard that the UC Davis area was very well known for it's vet activities. That said, we're not vets! This was just a way to get a sense of learning what this special dog is, that we've become so attached to. Any answer we get will only make her more special!
ALM