William Kenneth Newton (6 November 1927 – 6 March 2010) was an English doctor who treated British and foreign royalty as well as many celebrities, and after retirement wrote the acclaimed novel The Two Pound Tram (under the name William Newton) which won the 2005 Society of Authors Sagittarius Prize (for first novelists over the age of 60).
He was born in Ealing, west London the son of racing driver Frank Newton (who won the Montagu Cup in 1908 at Brooklands).
After working with Sir Francis Leslie, in 1960 he set up his own practice at 60 Cadogan Square in Knightsbridge which he expanded to offer consultation, radiology, pathology and a dispensary; among his patients was Princess Alice, Duchess of Gloucester.
In 1986 he moved to 79 Harley Street where his patients included Audrey Hepburn, Deborah Kerr and Dame Margot Fonteyn and members of the Bahrain Royal family until his formal retirement in 1998, although he continued treating patients on a part-time basis until 2003.
He gave the manuscript to his nephew Nigel Newton – founder of Bloomsbury Publishing who, not wanting to get involved, passed it to on to his editorial staff.