Margaret, Margarethe, Grete, Gretl, Gretele are all the same person: the biographer Helen Ennis prefaces her book and arouses our curiosity with the note that she has used the names depending on the context. Margaret Michaelis was born Margarethe Gross in 1902, in Dzieditz (Austria, later Poland); when she died in 1985, in Melbourne, she was known as Margaret Sachs. She studied photography at the Institute of Graphic Arts and Research in Vienna. In the late 1920s she worked in studios in Prague, and then Berlin. There she met and married Rudolf Michaelis, an archaeological restorer and an anarchist. After the Nazi takeover, the couple fled to Spain in 1933; they separated soon after their arrival. In Barcelona, and after 1939 in Sydney, Michaelis managed her own photographic studios. In 1960 she married Albert Sachs, a Viennese-born émigré and moved to Melbourne.