B. M. Bower 
Starr, of the Desert [PDF ebook] 

In the aftermath of their father’s death, two orphans set out for the wild desert lands of New Mexico with a plan to eke out a living on a goat ranch. Soon after arriving at their destination, the pair strikes up an acquaintance with a mysterious fellow who goes by the name of Starr. Is he a true friend, or does he have a nefarious plan in mind? Read Starr, of the Desert to find out.