His original description incorrectly showed trisomy seventeen.
John Hilton Edwards (26 March 1928 – 11 October 2007) was a British medical geneticist. Edwards reported the first description of a syndrome of multiple congenitalmalformations associated the presence of an extra chromosome. The extra chromosome belonged to the E group of chromosomes which consisted of chromosomes 16, 17 and 18. The condition is now known as Edwards syndrome or trisomy 18 syndrome.
He was the son of the surgeon Harold C. Edwards. His brother is the geneticist and statistician A.W.F. Edwards. Early in his career, he worked under Lancelot Hogben, and was sometimes distinguished from the brother as "Hogben's Edwards".