[1] Jantuah was born on 21 December 1922 at Kejetia, a suburb of Kumasi, in the Ashanti Region of what was then the Gold Coast (present-day Ghana).
He was baptised on 19 May 1934 and he was given the Christian names John and Ernest at the St. Peter's Catholic Church in Kumasi.
He proceeded to the United Kingdom to study politics and economics at the University of Oxford (Plater College) on an Asanteman Council scholarship set up by the late Ashanti king (Asantehene), Otumfuo Sir Osei Tutu Agyeman Prempeh II.
[5] He was a staunch Roman Catholic was buried on 26 March in his home town at Mampongteng in the Ashanti Region.
[5] Jantuah is the author of Death of an empire : Kwame Nkrumah in Ghana and Africa which was published posthumously in 2017.