Among the well-known individuals included in volume 20, the following deserve special mention: Franz Schubert, Joseph Schumpeter, the members of the Schwanthaler sculptors' family, Arnold Schwarzenegger, Moritz von Schwind, Charles Sealsfield, Ignaz Seipel, Ignaz Semmelweis, Gottfried Semper, Saint Severinus, Archduke Sigmund of Tyrol, Johannes Mario Simmel, Friedrich Simony, and Camillo Sitte. Of special relevance for libraries and users of this bibliography, however, are the references to lesser-known individuals, which are otherwise rather difficult to locate.