Background
Ballesteros Ibarra, Guillermo was born on May 3, 1928 in Guadalajara, Jalisco, Mexico. Son of a civil engineer and owner of the largest civil engineering firm in Mexico. Grandson of Cresencio Ballesteros, military officer and aide to President Benito Juárez.
Brother of Cresencio Ballesteros, president of many leading Mexican firms.