[1][2] She was a member of the Kemper noble family, daughter of Jeronimo de Bosch Kemper [da; nl; sv] (1808-1876) and Maria Aletta Hulshoff (1810-1844) and educated in a girls' school.

In 1871, she became a member of Betsy Perk's Algemeene Nederlandsche Vrouwenvereeniging Arbeid Adelt, an association with the goal to improve women's right to be educated and work to support themselves; in 1872, she founded her own association with the same purpose, Algemeene Nederlandsche Vrouwenvereeniging Tesselschade, which she chaired 1886-1911.

[3] In 1878 she founded Vereeniging voor Ziekenverpleging, the first courses to educate professional nurses in the Netherlands.

[1][4] In 1894, she became chairperson of the Maatschappelijken en den Rechtstoestand der Vrouw in Nederland, and association to improve the legal rights of women, and in 1896-1906 she manage her own women's rights magazine, Belung und Recht; she was also a member of the women suffrage association.

[5] Her younger sister Christine de Bosch Kemper was a (less public) women's right activist as well.