If you sometimes start to feel like "I've really accomplished too much for someone my age", check out Peter's list of how old authors were when they won the Newbery.
Unfortunately, it looks like I've just missed my chance to say "In your FACE, Elizabeth Enright! I won the Newbery younger than you did."
Also, can I say it doesn't surprise me at all that the writer of Miss Hickory was an elderly lady? If you told me her limbs were twig-like, that wouldn't surprise me either.
Hmm... should probably start some sort of Internet campaign, complaining that older authors are underrepresented among Newbery winners.