Heinz Harro Max Wilhelm Georg Schulze-Boysen was a left-wing German publicist and Luftwaffe officer during World War II. As a young man, Schulze-Boysen grew up in prosperous family with two siblings, with an extended family who were aristocrats. After spending his early schooling at the Heinrich-von-Kleist Gymnasium and his summers in Sweden, he part completed a political science course at the University of Freiburg, before moving to Berlin on November 1929, to study law at the Humboldt University of Berlin. At Humboldt he became an anti-Nazi. After a visit to France in 1931, he moved to the political left. When he returned, he became a publicist on Der Gegner, a left-leaning political magazine. In May 1932, he took control of the magazine, but it was closed by the Gestapo in February 1933.

Libertas "Libs" Schulze-Boysen, born Libertas Viktoria Haas-Heye was a German Prussian noblewoman, who became a resistance fighter against the Nazis. From the early 1930s to 1940, Schulze-Boysen attempted to build a literary career, first as a press officer and later as a writer and journalist. Initially sympathetic to the Nazis, she changed her mind after meeting and marrying Luftwaffe officer Harro Schulze-Boysen. As an aristocrat, Schulze-Boysen had contact with many different people in different strata of German society. Starting in 1935, she utilized her position to recruit left-leaning Germans into discussion groups which she hosted at her and Harro's apartment, where they sought to influence her guests. Through these discussions, resistance to the Nazi regime grew, and by 1936, she and Harro began to actively resist the Nazis. During the early 1940s, whilst working as a censor for the German Documentary Film Institute, Schulze-Boysen began to document atrocities committed by the Nazis from photographs of war crimes forwarded by soldiers of the Sonderbehandlungen task force to the Film Institute.