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 the Dutch government, and even helped her obtain German citizenship. In 1902, A. A. Noske of Middelburg became the first to publish one of Kuyper's compositions: her Sonata for Violin and Piano, which she dedicated to P. W. Janssen. The debut performance of the sonata was on July 18, 1902, at a music festival in the city of Nijmegen, with Elisabeth Kuyper on the piano and Marie Hekker on the violin. On October 1, 1905, Elisabeth Kuyper became the first woman composer to be awarded the Mendelssohn Prize. She then composed perhaps her best known and most played work, the