It is astonishing that a black man could attract such a large and varied medical practice at that time.
From Liverpool he moved to Harlesden in north London.
His stay in Scotland, gathering more degrees, accelerated his journey away from his original home. His shyness and reserve masked a puritanical streak, perhaps a legacy of his narrow Scottish education which was later to be so dominant.
It made him intolerant of couples dancing together and he was appalled at the lax wartime morals and the ensuing secret abortions.
And he also became an elder of the Church of Scotland.
When he swept to power as the first President of Malawi in 1966 he called himself "Ngwazi", which means conqueror, and after a few years declared himself "Life President".
Again he attracted a large and devoted following, mostly white and middle- or lower middle-class. He was becoming very British, parted his hair and adopted a Homburg hat, furled umbrella and dark three-piece suit.
He was welcomed into people's homes and gained an acceptance and integration which was remarkable. He had always kept in touch with African politics and politicians but at this time Banda became increasingly peremptory and high-handed in his dealing with other Africans.
He excused his quest for British medical qualifications on the grounds that American qualifications did not allow him to practise on British territory.
A friend who saw the president in one of his last illnesses said that when he parted from him the old man wept and said "I'm so lonely, so lonely." Yet he had rejected companionship and marriage and turned his back on the Englishwoman who bore his son.
Once a dedicated doctor with admiring patients, first in Liverpool, then Newcastle and Harlesden, he was surrounded by friends.
Banda and other African leaders opposed it actively.
The battle brought Banda back to his original country after 43 years.