Comfort, Will Levington: Son of Power. v1. 5 Jun 2016
 

Will Levington Comfort (February 17, 1878 – November 2, 1932) was a U.S. writer, known primarily for adventure novels such as Apache. Three of Comfort's works served as the story for feature films. Somewhere in Sonora, based on his novel Somewhere south of Sonora, was remade in 1933 starring John Wayne.

Extract
His name was Sanford Hantee, but you will hear that only occasionally, for the boys of the back streets called him Skag, which "got" him somewhere at once. That was in Chicago. He was eleven years old, when he wandered quite alone to Lincoln Park Zoo, and the madness took him.