David Oliver Cauldwell

David Oliver Cauldwell (June 17, 1897 – August 30, 1959) was a prolific and pioneering sexologist, who coined the term transsexual as used in its current definition. Many of his monographs on sex, psychology, or health were published by Emanuel Haldeman-Julius in such forms as Big Blue Books. He was the editor of Sexology magazine's question and answer department.

Early life Cauldwell was born on June 17, 1897, in Cleveland, Ohio, to Gilbert Cauldwell, a surgeon; and Virginia Oliver-Wright.

Writing on transsexuality In 1949, he used the term "transexual" in his essay "Psychopathia Transexualis" to describe individuals whose sex assigned at birth was different from their gender identity. He was thus one of the first writers to use a term like "transsexual", although most notably, Magnus Hirschfeld wrote earlier of (psychic transsexualism). he advocated acceptance of homosexuality and transvestism. They find the article problematic, contradictory, and influential, and note its academic value as a historic example of writing on transsexualism.