Ramón Alcaraz was an officer in the Mexican Army who wrote many books about the Mexican-American War, including 1848's Apuntes para la historia de la guerra entre México y los Estados Unidos (which in 1850 Albert C. Ramsey translated into English as The Other Side, or: Notes for the History of the War Between Mexico and the United States, Written in Mexico).
The original article can be found at Ramón Alcaraz and the edit history here.