He was the son of Eduardo Edwards Garriga and Javiera Salas Errázuriz and was baptized on the same day of his birth at Parroquia El Sagrario.

He was the vice-director of the Society of Workers of Saint Joseph, Chaplain of Visitation in 1903, Director of the newspaper El País from 1901 to 1905, and served the La Estampa parish from 1905 to 1913.

On May 3, 1910, Pope Pius X established the General Military Vicariate and on May 27, 1910, he was appointed its first vicar; titular bishop of Dodona in 1910, and he received episcopal consecration on October 31, 1915.

[1] In 2015, researchers from the University of Chile compiled and published his articles, reports, and interventions related to Easter Island and the Rapanui community in a single volume.

He was a member of the Royal Academy of Political and Social Sciences of Madrid, a Commander of the Order of the Crown of Italy, an Officer of the Legation of Honor, and Assistant to the Papal Throne on September 29, 1934.