This undated photo shows a bronze statue of Ponca Tribal Chief Standing Bear at the U.S. Capitol in Washington. A tomahawk once owned by Chief Standing Bear, a pioneering Native American civil rights leader, will be returning to his Nebraska tribe after decades in a museum at Harvard. The university's Peabody Museum of Archaeology & Ethnology says it's been working with members of the Ponca Tribe in Nebraska and Oklahoma to repatriate the artifact.