Prior to these historical phases, feminist anthropologists trace their genealogy to the late 19th century. Erminnie Platt Smith, Alice Cunningham Fletcher, Matilda Coxe Stevenson, Frances Densmore—many of these women were self-taught anthropologists and their accomplishments faded and heritage erased by the professionalization of the discipline at the turn of the 20th century. Prominent among early women anthropologists were the wives of 'professional' men anthropologists, some of whom facilitated their husbands research as translators and transcriptionists. Margery Wolf, for example, wrote her classic ethnography "The House of Lim" from experiences she encountered following her husband to northern Taiwan during his own fieldwork.