I Found the Entwives!

[The Might]

it is such a neat thing to find so you want to give people a chance to do it themselves?

Depends on how you see it. Personally I'd rather have these peoplele come and say directly what they found.
But considering his remarks on the Entwives in the letters I doubt that any of these trees might have been the Entwives.

And to end this, I'd like to quote Tolkien. The quote is used to explain the presence of Tom Bombadil, but I believe that it can be used in many other cases:

And even in a mythical Age there must be some enigmas, as there always are.