When was the last Indian Yahi tribe named Ishi get out of hiding from California ?
' Sixteen ' ( Moak 1923:20 ) or ' seventeen ' ( T. Kroeber 1961 : 80 ) [ so - called ] Indian fighters killed about forty Yahi , as part of a retaliatory attack for two white women and a man killed at the Workman ’s household on Lower Concow Creek near Oroville ( Moak 1923:18 ) .