Stephen de Mowbray (15 August 1925 – 4 October 2016) was a counterintelligence officer in Britain's Secret Intelligence Service (MI6).
He was born at Lymington on 15 August 1925, the son of Ralph de Mowbray, a surgeon, and was educated at Hordle House School, Milford on Sea, Hampshire (later subsumed into Walhampton School near Lymington) during 1934-1938, followed by Winchester.
[1] After serving in the Fleet Air Arm in World War II, he studied for a degree in Politics, Philosophy and Economics (PPE) at New College, Oxford.
[4] In 1950, de Mowbray joined the Secret Intelligence Service, MI6, at first in the Economic Section under George Kennedy Young, later serving variously in Baghdad, Montevideo, and Washington DC.
He stated that both Roger Hollis and Graham Russell Mitchell, suspected Soviet moles in MI5, were exonerated.