Havelock Ellis
Born: February 2, 1859
Died: July 8, 1939
Nationality: British
Occupation: Psychologist
Biography: Henry Havelock Ellis, known as Havelock Ellis, was a British physician and psychologist, writer, and social reformer who studied human sexuality. He was co-author of the first medical textbook in English on homosexuality in 1897, and also published works on a variety of sexual practices and inclinations, including transgender psychology.