Twelve Years in the Saddle for Law and Order on the Frontiers of Texas;

"In offering this book to the public, I have not undertaken to present a history of my life. I do not consider my life of enough importance to warrant making a book about it. What I have undertaken to do is to tell some of the exciting experiences that have fallen to the lot of that noble band, the Texas Ranger force, of which I had the honor to be a member for twelve years. I had the leading part, it is true, in the incidents related, but the reader will see that I was not the whole show—there were others. I have prefixed some brief notes concerning my ancestry, and some incidents of my youth, and have followed with true accounts, written in my own plain way, of the principal events of my career as a Sergeant of the Rangers."

Sergeant William John L. Sullivan