He presented BBC programmes including Sports Report.
He appeared as a castaway on the BBC Radio programme Desert Island Discs on 10 August 1964.
[1] Grenfell was born in Pretoria, South Africa and spent his formative years at Potchefstroom.
In 1932 he left the country, heading for the United Kingdom for work.
Later he joined the BBC where he was a scriptwriter, working on Radio Newsreel and with Richard Dimbleby on Down Your Way.