Matilda Joslyn Gage, American feminist and author of Woman, Church, and State (1893)
Otto Gross, "an anarchist who in the years before the First World War developed a theory that the superego was in fact patriarchy and needed to be destroyed so as to unleash the benevolent, matriarchal collective unconscious, which he saw as the hidden but still-living residue of the Neolithic" [!]
("This he set out to achieve largely through the use of drugs and polyamorous sexual relationships," Graeber and Wengrow mention, in an aside.) Remembered today partly for influencing Jung's notion of the collective unconscious, though his "political conclusions" were cast aside
The exponents of primitive matriarchy have been "written out of history: Gage from the history of feminism, Gross from that of psychology (despite inventing such concepts such as introversion and extroversion, and having worked closely with everyone from Franz Kafka and the Berlin Dadaists to Max Weber)" (215)