He then benefited from a two-year Rockefeller Foundation Scholar grant to study at Johns Hopkins University, where he gained a further medical degree.

He spent it as an officer in the Army Physiological Unit and Deputy Director for Scientific Research.

[1] In 1978 on the death of Sir Morien Morgan he was elected Master of Downing College, Cambridge, where he was a popular figure.

[citation needed] Butterfield was appointed Officer of the Order of the British Empire (OBE) in 1953.

[3] He was made a life peer in 1988 as Baron Butterfield, of Stechford in the County of West Midlands.