Sabine’s Odyssey: A Hidden Child And Her Dutch Rescuers by Agnes Schipper; Amsterdam Publishers, the Netherlands; 9788493-231948; 219 pages, $18.95 SAN DIEGO – Sabine Fröhlich grew up a Catholic in Breslau, Germany, but her ancestry was Jewish. Along with her parents and her older brother Andreas, she was declared to be a Jew according to the Nazis’ bizarre racial classifications. Like self-identified Jews in Germany, she was systematically excluded from normal life—even the Catholic school which she had attended. Her parents wisely decided to send her to England, but after they made it across…