Gonne and O'Delaney worked together for the rest of her life, as Gonne's researcher and companion, with a brief split in March 1899 following a quarrel after which Gonne wondered if O'Delaney was insane. Upon the foundation of the Paris Young Ireland Society in 1897, O'Delaney became its secretary. In this position she circulated reports of its work to Irish papers, whilst also being Gonne's assistant editor to the French language nationalist newspaper, "L'Irlande Libre". O'Delaney suggested a special number of "L'Irlande Libre" to mark Queen Victoria's Irish visit in 1900, in which she was blamed for the Irish famine and other Irish misfortunes. The issue was banned by Dublin Castle authorities in Ireland.