He was born in
Santiago on 20 March 1874, son of Telésforo Cabero del Canto and Filomena Díaz. He married Lía Henríquez Novoa, and they had one son. He studied at the Instituto Nacional and at the Faculty of Law of the
University of Chile. He qualified as lawyer on 21 August 1901; his thesis was titled
Obligaciones naturales. At the age of fifteen he worked as customs dispatcher in the commercial house Hagen y Jacobsen in Coronel. He later served as sub-director of the Escuela de Artes and professor of Spanish at the Instituto Barros Arana and at the Liceo de Antofagasta, where he also acted as Defender of Minors. He was conservator of Real Estate and Mines of Antofagasta and held advisory positions in public financial institutions. He was member of the
Radical Party and served as president of its Central Board. He was appointed Intendant of Antofagasta from 30 December 1918 to 2 January 1920 and later Intendant of Santiago. Following the fall of President Juan Esteban Montero Rodríguez, he joined the Third Government Junta of the Socialist Republic from 16 to 30 June 1932, alongside Carlos Dávila Espinoza and Pedro Nolasco Cárdenas Avendaño. He presented his resignation on 20 June 1932. He served as Minister of Lands and Colonization under President Arturo Alessandri Palma between 24 March and 25 May 1937. In 1938 President Pedro Aguirre Cerda appointed him Minister of National Defense from 24 December 1938 to 12 April 1939. He was subsequently ambassador of Chile to the United States from 1939 to 1942. Between 1942 and 1947 he was president of the Caja de Amortización de la Deuda Pública. He authored the socio-political study
Chile y los chilenos and collaborated in the press on political matters. He was member and counselor of the National Bar Association. ==References==