There, she established in the following years a new circle of friends (including Hans Olden and his wife Grete, Rudolf Steiner and Eduard von der Hellen), and read the writings of Friedrich Nietzsche, Arthur Schopenhauer and Ernst Haeckel.
Gabriele Salvatores | Gabriele D'Annunzio | Gabriele Muccino | Gabriele Marcotti | Gabriele Mirabassi | Paul Reuter | Gabriele Amorth | Gabriele Reuter | Gabriele d'Annunzio | Fritz Reuter | Al Gabriele | Princess Marie Gabriele of Luxembourg | Gabrielė Petkevičaitė-Bitė | Gabriele Münter | Gabriele Kröcher-Tiedemann | Gabriele Allegra | Stefan Reuter | Oronzio Gabriele Costa | Markus Reuter | Gabriele Veneziano | Gabriele Tredozi | Gabriele Rangone | Gabriele Pauli | Gabriele Nissim | Gabriele Heinisch-Hosek | Gabriele Heinen-Kljajic | Gabriele Falloppio | Gabriele Faerno | Gabriele della Genga Sermattei | Gabriele de' Gabrielli |
Wolfthorn was known for her portraits, among others of Ida Dehmel, Richard Dehmel, Carl Ludwig Schleich, Hedda Eulenberg, Gabriele Reuter, family members of writers Hedwig Lachmann and Gustav Landauer, the family of architect Hermann Muthesius, opera singer Irmgard Scheffner, many actrices like Tilla Durieux or Carola Neher, and many other famous people of her time from Berlin, mainly female activists.