I would search Google: Both US site and google.mx.
Enrique died in 1899 and his offspring came to the US during the revolution (1913-1914). They were one of many families whom Pancho Villa kicked out of the country due to their wealth. While all of Enrique's family stayed in the US following the revolution, his brother Alejandro's offspring went back after things settled down. Their father had amassed his wealth following Mexico's independence from Spain and had been at the forefront of Chihuahua politics and business up until his death in 1849. Enrique's parents died from a cholera epidemic (from the book, Haciendas de Chihuahua.) He would have been just 12 or 13 at the time. Following the death of Enrique's parents, Luis Terrazas began his rise to the top of Chihuahua society and married Enrique's sister, Carolina, followed by another figure, Reuben Creel, the American Consul, who married another sister, Paz. These two men began the Terrazas-Creel clan which is often written about.