(en) Paul Andrew Hutton, The Apache Wars : The Hunt for Geronimo, the Apache Kid, and the Captive Boy Who Started the Longest War in American History, Crown/Archetype, , 544 p. (ISBN978-0-7704-3582-0, lire en ligne), p. 41–44.
(en) Donald C. Pfanz, Richard S. Ewell : A Soldier's Life, University of North Carolina Press, , 109–116 p. (ISBN978-0-8078-8852-0, lire en ligne).
(en) Terry Mort, The Wrath of Cochise : The Bascom Affair and the Origins of the Apache Wars, Pegasus Books, , 400 p. (ISBN978-1-4532-9847-3, lire en ligne), p. 10–12.
(en) Edward R. Sweeney, Making Peace with Cochise : the 1872 Journal of Captain Joseph Alton Sladen, Norman, University of Oklahoma Press, , 179 p. (ISBN978-0-8061-2973-0 et 0-8061-2973-5, lire en ligne), p. 120–126.
Wm. B. Shillingberg, Tombstone, A.T. : A History of Early Mining, Milling, and Mayhem, University of Oklahoma Press, , 404 p. (ISBN978-0-8061-5409-1, lire en ligne), p. 19–20, 75, 86.