A heck of a life to be sure. However, his biography ('Heart of a Soldier' by James B. Stewart) I found very disappointing. I felt it was opportunistic, despite being written with the co-operation of his widow, marked as it was by background factual mistakes and sketchy info. on the man himself indicative of poor research by a financial journalist.
For instance, his British Army service only occupies pp. 42-43, a large part of which is background to the Cyprus Emergency. No mention of the Parachute Regiment (or any regiment) just the basically unsupported statement that he was involved in intelligence work. Personally, I hope someone does a better job one day in order to do the man justice.