H.H. was the alias of Helen Maria Hunt Jackson (October 18, 1830 – August 12, 1885), an American writer who became an activist on behalf of improved treatment of Native Americans by the U.S. government. She detailed the adverse effects of government actions in A Century of Dishonor (1881). Her novel Ramona dramatized the federal government's mistreatment of Native Americans in Southern California and attracted considerable attention to her cause, although its popularity was based on its romantic and picturesque qualities rather than its political content. She also wrote about a cat.