Ann Sanfedele wrote: > Well, I actually did double check with my friend who wrote the Trivia and > Fact book - Yes, he said, Common was proper but also it is commonly (no > pun...) referred to as > the Commons. It seems to be a common mistake.
It's not really a mistake; both are proper, although most New Englanders used "commons" when I lived there. See, e.g., the Random House Dictionary.

