Re: Potentially stupid questions
"Die-gan" (with a hard G) is my first instinct too, but I'm in the country immediately south of Canada (since I read today that some people in Latin and South America resent people from a certain country in North America calling themselves "Americans"), so maybe pronunciation is different.
If you're really in doubt, you could try writing the author to ask.
Curly: Moe, Larry, the cheese! Moe, Larry, the cheese! (Horses Collars, 1935)