She sounds like a wonder woman, Dragon. All of you are the richer for having known her.
Now it's up to you and your wife to keep her alive in those children's heart. Make sure you go over their stories about her, even the pickles, (LOL) and keep those memories alive for them.
That's the kind of "Gammy" I want to be... minus all the candy, though!
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.