Hi Malcom, I was thinming about this overnight and subsequently checked before I read your post. You are of course dead right, Oxford is not the source.

I know that it is on p118 and is titled 'THE DUKE OF MARLBOROUGH'. The book was ...umm... I pulled a number of tunes from it including 'When This Bloody War is Over', 'Dunkirk'. It's a paperback and has 'War' in its title. It'll take me a coupla days to locate it. Regards, John