Ignacio Eugenio Lozano Sr. (1886-September 21, 1953)^[1] was born in Marín, Nuevo León on Mexico-Texas border. He was a famous journalist of northern Mexico, but he joined the exodus into the United States during the Mexican Revolution.,^[1][2] He moved to San Antonio and established a Spanish language bookstore and worked on two Spanish language periodicals.^[1]

He founded La Prensa as a Spanish language daily newspaper in 1913.^[1][2][3][4] His granddaughter, Monica C. Lozano, would later say though La Prensa was not the first Spanish language daily, it became the largest.^[2]

He founded La Opinión in Los Angeles, home of La Prensa's biggest readership, in 1926.^[2][3][4] He and his wife, Alicia Elizondo Lozano, operated both papers,^[4] the one in San Antonio, the other in Los Angeles. After his death from cancer^[1] in 1953, his son Ignacio E. Lozano Jr. took over as publisher at La Opinión and his widow returned to San Antonio to keep La Prensa in business for ten more years.,^[1][2]

He was married to Alicia Elizondo de Lozano, who kept La Prensa running after his death, until she sold it in 1959.^[2] They had two children: Ignacio Eugenio Lozano Jr. (born 1927) and Maria Alicia Lozano (born 1923), who moved to Mexico City as a married woman.^[2]