Ralph Connor 
Corporal Cameron of the North West Mounted Police A Tale of the MacLeod Trail [EPUB ebook] 

When Ralph Connor (Rev. Charles William Gordon) first published "Corporal Cameron of the North West Mounted Police A Tale of the Mac Leod Trail" in 1912, he created the first great fictional Mountie hero. He based Allan Cameron on the real-life Sergeant William Fury, who alone faced down a mob in Kicking Horse Pass. His "I’ll shoot the first man who takes one more step" became a staple in hundreds of later Hollywood Westerns. (Goodreads)