The Tsimshian are an Indigenous people of the Pacific Northwest Coast. Their communities are mostly in coastal British Columbia in Terrace and Prince Rupert, and Metlakatla, Alaska on Annette Island, the only reservation in Alaska.

The Tsimshian are one of the largest First Nations peoples in northwest British Columbia. Some Tsimshian migrated to the Annette Islands in Alaska, and the Alaska Tsimshian people are enrolled in the federally recognized Metlakatla Indian Community, sometimes also called the Annette Island Reserve. The Tsimshian honors the traditional Tlingit name of Taquan for this recent location.

Tsimshian society is matrilineal kinship-based, which means identity, clans and property pass through the maternal line. Their moiety-based societal structure is further divided into sub clans for certain lineages.

Resource: https://en.wikipedia.org/wiki/Tsimshian