After a week in police custody, Marie Ferré was released, while her mother was committed to a mental asylum, where she died.

[4] With her entire family dead or interned, Ferré dedicated herself to helping revolutionary prisoners,[2] working both days and nights in order to send money to imprisoned Communards.

[1] After a political amnesty was proclaimed, in November 1880, Ferré and Camille Bias [fr] greeted Michel at Gare Saint-Lazare upon her arrival back from exile.

In July 1881, Ferré and Michel organised the re-burial of Théophile's remains in the Levallois-Perret Cemetery; and in January 1882, they participated in a demonstration on the first anniversary of Louis Auguste Blanqui's death.

[2] Her body was covered with Louise Michel's red shawl and buried on 26 February in the Levallois-Perret Cemetery, alongside her brother Théophile and their mother.