The Institute housed Hirschfeld's immense archives and library on sexuality and provided educational services and medical consultations; the clinical staff included psychiatrists Felix Abraham and Arthur Kronfeld, gynecologist Ludwig Levy-Lenz, dermatologist and endocrinologist Bernhard Schapiro, and dermatologist Friedrich Wertheim. The Institute also housed the Museum of Sex, an educational resource for the public, which is reported to have been visited by school classes. Hirschfeld himself lived at the Institution on the second floor with his lover, Karl Giese, together with his sister Recha Tobias (9 June 1857- 28 September 1942). Giese and Hirschfeld were a well known couple in the gay scene in Berlin where Hirschfeld was popularly known as "Tante Magnesia". "Tante" ('aunt') was a German slang expression for a gay man but did not mean, as some claim, that Hirschfeld himself cross-dressed. People from around Europe and beyond came to the Institute to gain a clearer understanding of their sexuality. Christopher Isherwood writes about his and W. H. Auden's visit in his book "Christopher and His Kind"; they were calling on Francis Turville-Petre, a friend of Isherwood's who was an active member of the Scientific Humanitarian Committee. Other celebrated visitors included German novelist and playwright Gerhart Hauptmann, German artist Christian Schad, French writers René Crevel and André Gide, Russian director Sergei Eisenstein, and American poet Elsa Gidlow. In addition, a number of noted individuals lived for longer or shorter periods of time in the various rooms available for rent or as free accommodations in the Institute complex. Among the residents were Isherwood and Turville-Petre; literary critic and philosopher Walter Benjamin; actress and dancer Anita Berber; Marxist philosopher Ernst Bloch; Willi Münzenberg, a member of the German Parliament and a press officer for the Communist Party of Germany; Dörchen Richter, one of the first transgender patients to receive sex reassignment surgery at the Institute, and Lili Elbe. Richter had been born Rudolf Richter and being arrested for cross-dressing had come to the institute for help. Hirschfeld had coined the term transvestite in 1910 to describe what today would be called transgender people, and the institution became a haven for transgender people, where Hirschfeld offered them shelter from abuse, performed surgeries, and gave otherwise unemployable transgender people jobs, albeit of a menial type, mostly as "maids".