Could a tree surgeon do some emergency surgery to fix the tree?
With the branches are all cut off? I doubt it can be saved.
I think the "tragedy" here is way over-rated, because, after all, the Puritans cut down the (supposed) original tree, and this one only dates back to 1951 (read the story). I'm sure there are plenty of clippings and other growths of the original tree out there to regrow a new one, perhaps behind a stout wall or fence....