By PHILIP MARCELO Associated Press BOSTON (AP) â A tomahawk once owned by Chief Standing Bear, a pioneering Native American civil rights leader, is returning to his Nebraska tribe after decades in a museum at Harvard. The universityâs Peabody Museum of Archaeology & Ethnology says itâs been working with members of the Ponca Tribe in Nebraska and Oklahoma to repatriate the artifact. Larry Wright, Jr., chairman of the Ponca Tribe of Nebraska, said Tuesday the return of the historic weapon is a powerful symbol of homecoming for the tribe, which was among many forcibly relocated from their homelands to other territories by the federal government in the 1800s.