Conversation so far:
What happened in his childhood?
John Money was born in Morrinsville, New Zealand, to a family of English and Welsh descent.
Did John Money have siblings?
Did John Money use his degree?
John Money was a professor of pediatrics and medical psychology at Johns Hopkins University from 1951 until his death.
Was John Money well regarded in his field?
John Money was one of the first researchers to publish theories on the influence of societal constructs of gender on individual formation of gender identity.
What else did John Money do besides publish research on theories on the influence of societal constructs?
Money introduced the terms gender identity, gender role and sexual orientation and popularised the term paraphilia.

Question: how old was he when he did that?
Self-contained rewrite: how old was John Money when he introduced gender identity??