 In 1906 she founded "l'Avenir social", an orphanage for workers' children, which she ran despite government opposition until 1922, when she resigned after the board was taken over by Communists.She was a committed pacifist during World War I (1914–18), and continued to be involved in pacifist organizations after the war.Madeleine Eugénie Clémentine Victorine Cavelier was born on 3 September 1878 in Le Houlme, then in Seine-Inférieure.