This is a very short and repetitive book. To some degree, that cannot be helped because the outlaws of the late 1800s overlapped with one another quite often. Still, there are elements of the writing that make this worse. The chapters are not written as a continuous narrative. Each feels like a separate, wholly unconnected entry. Therefore, instead of establishing early on that "Indian Territory" is now known as the state of Oklahoma, details like this are repeated an eye-roll-inducing number of times.
Additionally, typos in published works bug me. This book contains several. A few examples: In the Phil Coe chapter the year 1971 is referenced when the story is clearly about 1871. In the Newton chapter, the word approve is used when the context of the sentence indicates that the word improve is what was intended. In the Bender chapter, Cherryvale is written correctly at least a dozen times followed by Cherry vale at the end of the chapter. The same paragraph features nineteenthcentry.
There are three stories at the end of the book with which I was not familiar before reading the book. Stella Hyman, impregnated by her nephew and angry that her sister and brother-in-law will not permit her to marry him, uses flypaper to poison her niece, sister, and brother-in-law. The latter two die and her niece's health is so severely diminished that she is considered an invalid. The other story that was new to me is the history of Robert Stroud, Birdman (of Alcatraz). Though there is a book and a movie about his life, I had never heard of him.