Mike Cox whose Texas books and book reviews have been read many is back in the saddle after a hiatus in his blog http://www.lonestarbooks.blogspot.com/. He's offered a review of Pierce Burns' A Few Good Horses, an account of his times. We've also got a copy of the volume here at WT and will recommend it shortly.
Also you'll be wanting to get a copy of Cox's new book on the Texas Rangers. With Cox's in depth knowledge of them, by his own personal research and his years at Texas Department of Public Safety, now the home of the Rangers, plus his years journalism experience, and his very readable style, it ought to be wonderful reading.