First of all i want to stick with many other posters here and thank you Mr. Gygax for inventing a game that is simply awesome and campaign worlds (Greyhawk) I love.
But now to my question.
As the son of a swiss immigrant do you happen to speak german or to have some ties to the german language? I just asked this myself, because as a german player one happens to find that many names in the Greyhawk setting sound very german. Additionally there's this Troll Lord Setting called "Erde" which is just the german translation of earth (for users that are not familiar with the german language).
Examples in the Greyhawk setting include: the Drachensgrab Hills, Guldenberg, Schwartzenbruin (sounds Austrian

) and Kalstrand.
Edit: Sorry it was Aihrde, but the sound is the one of the german word.