SIGH: treen.

Folks, the sentence says that the fair was held in the treen; and that treen had a name. So, I don't think that treen here means a bathroom or a piece of woodware, unless
either was quite a bit larger than normal. A stand of
trees seems the best bet so far. I'm taking that one. (For those who want to verify, the sentence is in my post on
page 1.)