Passions : Sexuality : Sex Organs

Karl M. Baer (20 May 1885 – 26 June 1956) was a German-Israeli author, social worker, reformer, suffragist and Zionist.
Born intersex and assigned female at birth, he came out as a trans man in 1904 at the age of 21. In December 1906, he became the first transgender person to undergo sex reassignment surgery, and he became one of the first transgender people to gain full legal recognition of his gender identity by having a male birth certificate issued in January 1907. However, some researchers have disputed his label as a trans man, theorizing that he was intersex, and not transgender.Baer wrote notes for sexologist Magnus Hirschfeld on his experiences growing up female while feeling inside that he was male. Together they developed these notes into the semi-fictional, semi-autobiographical Aus eines Mannes Mädchenjahren (Memoirs of a Man's Maiden Years) (1907) which was published under the pseudonym N.O. Body. The book "was immensely popular," being "adapted twice to film, in 1912 and 1919." Baer also gained the right to marry and did so in October 1907.
Despite him having undergone gender reaffirming surgery in 1906, exact records of the medical procedures he went through are unknown, as his medical records were burned in the 1930s Nazi book burning, that targeted Hirschfield studies specifically.

Sir Ewan Forbes, 11th Baronet, (6 September 1912 – 12 September 1991), was a Scottish nobleman, general practitioner and farmer. Forbes was a trans man; he was christened Elizabeth Forbes-Sempill and officially registered as the youngest daughter of John, Lord Sempill. After an uncomfortable upbringing, he began presenting as a man in the 1930s, following a course of medical treatments in Germany. He formally re-registered his birth as male in 1952, changing his name to Ewan, and was married a month later.
In 1965, he stood to inherit the baronetcy of his elder brother William, Lord Sempill, together with a large estate. This inheritance was challenged by his cousin, who argued that the re-registration was invalid; under this interpretation, Forbes would legally be considered a woman, and thus unable to inherit the baronetcy. The legal position was unclear, and it took three years before a ruling by the Court of Session, which held him to be intersex, finally led to the Home Secretary recognising his claim to the title. The case was heard in great secrecy, with the effect that it was unable to be considered in other judgments on the legal recognition of gender variance, but has become more widely known since his death in 1991.

Jürgen Bartsch (born Karl-Heinz Sadrozinski; November 6, 1946 – April 28, 1976) was a West German serial killer who murdered four boys aged between 8 and 13 and attempted to kill a fifteen year old boy. The case of this sexual offender was the first in German jurisdiction history to include psycho-social factors of the defendant, who came from a violent early surrounding, to set down the sentence.

Louis Graydon Sullivan (June 16, 1951 – March 2, 1991) was an American author and activist known for his work on behalf of trans men. He was perhaps the first transgender man to publicly identify as gay, and is largely responsible for the modern understanding of sexual orientation and gender identity as distinct, unrelated concepts.Sullivan was a pioneer of the grassroots female-to-male (FTM) movement and was instrumental in helping individuals obtain peer-support, counselling, endocrinological services and reconstructive surgery outside of gender dysphoria clinics. He founded FTM International, one of the first organizations specifically for FTM individuals, and his activism and community work was a significant contributor to the rapid growth of the FTM community during the late 1980s.

Herculine Adélaïde Barbin, later known as Abel Barbin (November 8, 1838 – February 1868), was a French intersex person who was assigned female at birth and raised in a convent, but was later reclassified as male by a court of law, after an affair and physical examination. She is known for her memoir, Herculine Barbin, which was studied by Michel Foucault. Her birthday is marked as Intersex Day of Remembrance.

Erik Schinegger (born 19 June 1948) is an Austrian intersex skier. He was the women's downhill ski world champion in 1966, at which time he was recognized as female and known as Erika Schinegger.