Twenty years ago, the Central Council of Tlingit & Haida Indian Tribes of Alaska asked the Portland Art Museum to return nine objects that were taken from the Naanya.aayí clan in Wrangell almost 100 years ago.

Among them are a mudshark hat and shirt, killer whale stranded on a rock robe, killer whale hat, killer whale with a hole wooden fin, killer whale flotilla Chilkat robe, two mudshark shirts, and a headdress the clan says was captured from the Tsimshian during a battle near the mouth of the Stikine River, according to a federal register listing announcing that the museum intended...