In this contribution additional evidence is provided for Klein's theory that hand A in MSS Librije 1323 and 1324 belongs to a canon of Stein. A few possible objections are discussed. Though Klein's hypothesis that A is Servatius Rogerus cannot be true, it is argued that MS 1323 (part A) and 1324, together with the original of the Scriverius manuscript now in Tilburg, once formed a coherent collection of works by Erasmus and by the associates of his early years, and that Servatius Rogerus is the most likely person to have made this collection. In the second half of the sixteenth century the Erasmiana in the Stein monastery were kept by someone who was both an ardent defender of Erasmus and a loyal catholic. He is the person behind hand B, and may perhaps be identified with Wouter Jacobsz Maes, the last prior of Stein (but Maes is not B himself). Finally, a piece of Latin prose, preserved in a little manuscript kept in Leiden but originally from Stein, is analysed. It is a historical introduction to an agreement concluded between Stein and the city of Gouda. The hypothesis is launched that it may have been composed by a humanist canon of Stein in his early years, possibly Willem Hermansz.