My wife and I and want to thank everyone for all their kind words, prayers, and good wishes. She's doing better now, and we hope that she'll be entirely well in a week or two. I showed her all of your messages and they really made a difference in how she was doing.
About the tour, three of the dates were at universities. I don't think it's possible to do this later this summer, when most students would be gone. Same thing with Christmas break. It looks like the next chance for this will be next summer. And I'm willing to make it a more extended tour if necessary. The places we have not gone yet, like Italy or Norway, are places I think we really need to try for.
It'll take me a few days to catch up. Thanks again for all your kindness.