 She led the denunciation of British rule at the Convention of November 1914.In 1916 she was arrested and imprisoned following the Easter Rising, and also was dismissed from her teaching position for her republican activities.Several months later, upon her release from prison, she and her sister Annie re-founded Scoil Íte, a sister school to Patrick Pearse's St. Enda's School, and she remained involved with the school for the rest of her life.