Kuyper wrote to the Nieuwe Rotterdamse Courant after they had reacted to Kuypers speech at the Bilderdijk commemoration. At the speech Kuyper had stated that the poets Albert Verwey (1865-1937) and Willem Kloos (1859-1938) did not qualify Bilderdijk as a real poet. According to the Nieuwe Rotterdamse Courant Kloos just published collection of Bilderdijks verses. There Kloos had stated that it would be wrong not to call Bilderdijk a poet. This statement contradicted with what Kuyper had said in his speech.
In his letter to the editor of the Nieuwe Rotterdamse Courant Kuyper provided evidence for the claim in his speech, citing works of Verwey and Kloos, and also stated that he was aware of Kloos’ publication of Bilderdijk’s work. .