[3] In 1916, she was the secretary of the pacifist and anti-militarist newspaper Ce qu'il faut dire, founded by Sébastien Faure and Mauricius to oppose the Manifesto of the Sixteen.

[3][6] In July 1927, Durruti was expelled from France into Belgium and Morin gave up her job as a shorthand typist to join him in Brussels where many Spanish anarchists were living below the radar.

Her energetic character, ideological convictions and oratory skills were evident in the public controversies - especially with the communists - that took place in the Maison du Peuple in Brussels.

On 27 May 1937, she was one of the speakers - along with Haussard, Sébastien Faure, Fidel Miro, Bernardo Pou and Cortes - at the large support meeting held by the Union Anarchiste at the Salle de la Mutualité in Paris, attended by about 4,000 people.

[3] Four large rooms at 28 Boulevard Saint Denis were rented in her name in September 1937 as an office for the publication La Nouvelle Espagne antifasciste/La Nueva España antifascista, whose editor was Nemesio Galve, who defended the official line of the Confederación Nacional del Trabajo and Federación Anarquista Ibérica.

[3] On 22 November 1938 she chaired a meeting to commemorate Durutti held at the Salle de la Mutualité by the Union Anarchiste, where E. Frémont, Suzanne Levy, P. Herrera and Chazoff.

Morin collaborated with the Solidaridad Internacional Antifascista (SIA) organisation run by Louis Lecoin and Nicolas Faucier, particularly to collect funds and aid for Spanish refugees interned in camps in the south of France.