Following the trial, La Flesche and her half-brother Francis accompanied Standing Bear and others on a speaking tour of the eastern United States, organized by Tibbles. In addition to taking turns interpreting for Standing Bear, Susette La Flesche spoke in her own right. During the tour, La Flesche and Tibbles also testified in Washington in 1880 before a Congressional committee about the Ponca removal. La Flesche spoke for the rights of Native Americans. They met prominent American writers, such as the poet Henry Wadsworth Longfellow and writer Helen Hunt Jackson. In 1881 Jackson published a book about US treatment of Native Americans entitled "A Century of Dishonor", and in 1884 the novel "Ramona", based on Indian issues in Southern California. Longfellow reportedly said of La Flesche, "This could be Minnehaha", referring to the legendary Indian heroine in his poem "The Song of Hiawatha."