The Entwives are in the Shire

My best friend and I have decided that the Entwives are almost definitely in the Shire (My bet is on the Old Forest; Tom Bombadil talks about it being incredibly ancient, perhaps even comparable to Fangorn). For one, when Treebeard describes the sort of country the Entwives loved (and thus, left Fangorn to seek), Merry and Pippin comment on how much that sounds like the Shire. Also, there's a passage in The Fellowship where Sam is in a bar having a conversation with some other hobbits:

"All right," said Sam, laughing with the rest. "But what about these Tree-men, these giants, as you might call them? They do say that one bigger than a tree was seen up away beyond the North Moors not long back."...
"But this one was as big as an elm tree, and walking -- walking seven yards to a stride, if it was an inch."
"Then I bet it wasn't an inch. What he saw was an elm tree, as like as not."
"But this one was walking I tell you; and there ain't no elm tree on the North Moors."