[1] Historian Elizabeth Dorn Lublin described Sasaki's education as more like that given to boys, than girls, in this period, and it gave her exceptional assertiveness, which came to the fore in later power struggles.

[2] In 1886 she cooperated with Yajima Kajiko in founding the association of the Women's Christian Temperance Union in Japan (東京婦人矯風会, Tōkyō fujin kyōfūkai), which advocated the abolition of prostitution and abstinence from alcohol.

[2] She was on the editorial board of the organisation's magazine, Fujin kyofu zasshi, alongside Wakamatsu Shizuko, Asai Saku and Honda Teiko.

[6] Sasaki was the aunt of the restauranteur and artist's patron Kokkō Sōma (1876–1955).

[7][8] She also had a daughter, Nobuko (佐々城 信子; 1878-1949), who was the inspiration for the heroine in the novel Aru Onna by Arishima Takeo.