Background: John William Money (8 July 1921 - 7 July 2006) was a psychologist, sexologist and author, specializing in research into sexual identity and biology of gender. He was one of the first scientists to study the psychology of sexual fluidity and how the societal constructs of "gender" affect an individual. More recent academic studies have criticized Money's work in many respects, particularly in regards to his involvement with the sex-reassignment of David Reimer and his eventual suicide. Money's writing has been translated into many languages, and includes around 2,000 articles, books, chapters and reviews.
Context: Born in Morrinsville, New Zealand, to a family of English and Welsh descent, Money initially studied psychology at Victoria University of Wellington, graduating with a double master's degree in psychology and education in 1944. Money was a junior member of the psychology faculty at the University of Otago in Dunedin, but in 1947, at the age of 26, he emigrated to the United States to study at the Psychiatric Institute of the University of Pittsburgh. He left Pittsburgh and earned his PhD from Harvard University in 1952. He was married briefly in the 1950s but had no children.  Money proposed and developed several theories and related terminology, including gender identity, gender role, gender-identity/role, and lovemap. He coined the term paraphilia (appearing in the DSM-III) to replace perversions and introduced the term sexual orientation in place of sexual preference, arguing that attraction is not necessarily a matter of free choice. Money was a professor of pediatrics and medical psychology at Johns Hopkins University from 1951 until his death. He also established the Johns Hopkins Gender Identity Clinic in 1965 along with Claude Migeon who was the head of plastic surgery at Johns Hopkins. The hospital began performing sexual reassignment surgery in 1966. At Johns Hopkins, Money was also involved with the Sexual Behaviors Unit, which ran studies on sex-reassignment surgery. He received the Magnus Hirschfeld Medal in 2002 from the German Society for Social-Scientific Sexuality Research.  Money was an early supporter of New Zealand's arts, both literary and visual. He was a noted friend and supporter of author Janet Frame. In 2002, as his Parkinson's disease worsened, Money donated a substantial portion of his art collection to the Eastern Southland Art Gallery in Gore, New Zealand. In 2003, the New Zealand Prime Minister, Helen Clark, opened the John Money wing at the Eastern Southland Gallery.  Money died 7 July 2006, one day before his 85th birthday, in Towson, Maryland, of complications from Parkinson's disease.
Question: did he have siblings. Whats the answer?