In the 1930s, Rebecca Donner’s great-great-aunt Mildred Harnack helped organize a clandestine circle of anti-Nazi resisters in Berlin. In “All the Frequent Troubles of Our Days,” Donner tells Harnack’s story.In the 1930s, Rebecca Donner’s great-great-aunt Mildred Harnack helped organize a clandestine circle of anti-Nazi resisters in Berlin. In “All the Frequent Troubles of Our Days,” Donner tells Harnack’s story.Read MoreBooks and Literature, Berlin (Germany), , Donner, Rebecca, Holocaust and the Nazi Era, Espionage and Intelligence Services