Actually, I mention the wild horses of the east coast in my book (and of course read "Misty of Chincoteague" in my childhood), some of which are descended from the horses that came with conquistadors, just like many mustangs of the West. Speaking of the east coast, did you know that Paul Revere's horse - a steed commandeered from a Massachusetts deacon - had Spanish bloodlines? And she had a name; it, and her story, are in my book.