The appaloosa was bred by the nez perce indians of the north western united states. They once were a great breed before horse shows. Now some don't even have proper color. But horse shows have bred the brains out of most modern horses. And quarter horses weren't always large. Cow ponies were called that for a reason. Small hearty horses that could work hard and survive on what they found to eat on the trail.
I've heard of joker b but don't know his story. Just know he's famous or I wouldn't know of him.