He also wrote and published some history books: My Native Land, published in English; El Alba and Cuatro Presidentes de Chile, that refer to the administrations of presidents Prieto, Bulnes, Montt and Pérez.

[1] He was a member of the lower house of the Chilean National Congress for four consecutive periods, between 1900 and 1910, representing the Partido Nacional.

In 1910 he was named a plenipotentiary to Great Britain, and had a very important participation in the negotiations with Peru, with respect to the plebiscite that was to solve the question of the property of Tacna and Arica.

He died at the age of 63, on June 18, 1941, at his residence located in the Errázuriz Urmeneta Palace (Alameda 1656); he was attended by doctors Carlos Corvalán and Hernán Alessandri.

[3] The funeral was held on June 20, after a mass celebrated at Edwards' home by the then rector of the Catholic University of Chile, Monsignor Carlos Casanueva; he was later transferred and buried in the General Cemetery.