Marie Wilcox
Marie Wilcox is the last fluent speaker of Wukchumni, a dialect of Tule-Kaweah, which is a Yokutsan indigenous language spoken by the Tule-Kaweah Yokuts of California. She and her daughter teach interested members of their tribe; however, "few seem devoted to learn." She spent more than seven years working on a Wukchumni dictionary, which was published in 2014. As of 2014, it was estimated that the Wukchumni tribe had fewer than 200 members, of which Marie was the only fluent speaker of the language.