Nation The Muwekma Ohlone Tribe was declared ‘extinct’ in the 1920s. New DNA research says otherwise. April 5, 2022Celina Tebor, USA TODAYComments Off on The Muwekma Ohlone Tribe was declared ‘extinct’ in the 1920s. New DNA research says otherwise. The Muwekma Ohlone Tribe, declared "extinct for all practical purposes" in 1925, has new DNA research to bolster its fight for federal recognition.