You pronounce Waugh almost like the British pronunciation of "war", i.e. "waw", rhymes with "paw" and "jaw". You may note that the word "wog" in English is a disparaging way of describing a Pakistani, so that pronunciation is to be avoided. See:
Wog - Wikipedia, the free encyclopedia
So the author's name is "eevlin waw".
Another curious thing is that Evelyn is usually a woman's name, as is Hilary (with one "l" in Britain). But the son of Tony Benn, a leading British left-wing politician (a lord who dropped his title), is called Hilary Benn.