Abraham Kuyper as "the physical basis for all higher development" in the Stone Lectures (1898). Harinck argues that "Kuyper was not guided by the cultural racism of his day, but by his Calvinistic creed of human equality". Kuyper's legacy includes a granddaughter, Johtje Vos, who is noted for having sheltered many Jews in her home in the Netherlands from the Nazis. After World War II she moved to New York City. Conversely, Kuyper's son Professor H. H. Kuyper, a supporter of Afrikaner Nationalism and colour racism, was a wartime Nazi collaborator and his grandson joined the Waffen SS and died on the
Elisabeth Kuyper Violin Concerto in B Minor, opus 10. The piece premiered on February 13, 1908 with the Hochschule orchestra conducted by a 70-year-old Max Bruch. In April 1908, she became the first woman to be appointed as a professor of Composition and Theory at the Hochschule für Musik. Because of the challenges Kuyper faced during her career, she became strongly connected with the women’s liberation movement of the period. Other than possible soloist performances, professional opportunities for female musicians were extremely limited, as no major orchestras of the time employed female musicians. Kuyper took great effort to bring change this situation.