 Their work in Port Simpson covered every facet of Tsimshian culture, including especially social structure—this at the instigation of Boas, whose own Tsimshian monograph had been upstaged by Beynon and Marius Barbeau's published Tsimshian research.She more than met Boas's expectations.Her 1935 dissertation, published in 1939, was "Tsimshian Clan and Society," still a masterful and eminently useful monograph.