R. M. Ballantyne 
Dog Crusoe and His Master A Story of Adventure in the Western Prairies 

The Dog Crusoe and His Master A Story of Adventure in the Western Prairies by R. M. Ballantyne Who doesn’t like a story that involves a great dog and his young master and friends? In this book you will share their action packed journey and adventures as they wander through the Western prairies with a mission to bring peace between the white population and the assorted Indian tribes. They face many perils and become heroes many times over. (Goodreads)