Perk began publishing feminist articles, arguing that men and women should be valued equally, even if they had biological differences.

In response she founded another magazine, Onze Roeping ("Our Calling"),[4] in which she suggested, among other things, that the work of unmarried and married women would promote the country's wellbeing.

[2] In 1871, she established Arbeid Adelt, a women's association, for which Onze Roeping was the official journal, but quickly had a dispute with fellow associates: the organization sold poor women's needlework at bazaars, and unlike her colleagues Perk wished the names of the creators to be known: "her ambition was the recognition of labor as a worthy manner of life".

[4] These years had asked a lot of her weak physique, and she withdrew to Valkenburg, where she toured the area on a donkey, and wrote an autobiography, Mijn ezeltje en ik.

Een boek voor vriend en vijand ("My donkey and I: A book for friend and enemy", 1874), in which she settled her accounts with the world of literature and feminism.