Whyte was born in 1928 in Penang, Malaya. His father was manager of a rubber plantation on the mainland. Whyte's family left Malaya, and returned to Europe when he was three, eventually settling in Rostrevor, County Down,
Northern Ireland. The Whytes are a well known
County Down family recorded in the area since at least 1713. The Whyte family is said to have come to Ireland from
South Wales with
Strongbow in 1170 and settled in
Leinster. Whyte was educated locally, at
Ampleforth and
Oriel College Oxford, from which he took a degree in
Modern History in 1949. Having continued studies some two years later he was awarded a
B.Litt degree for further research, which was to form the nebula of his first book which was to be published in 1958. Whyte undertook
National Service during the 1950s and worked as a history teacher in his old school before being appointed lecturer in Modern History at
Makerere University, Uganda. In 1962 he returned to Ireland having been appointed first 'lecturer in empirical politics' at the then expanding
University College Dublin (UCD). In 1966, he wed fellow academic Dr. Jean Murray and moved to
Queen's University Belfast to undertake further studies. ==Dispute with Roman Catholic Church and move to Belfast==