I can't say for certain, Evaki. I'm repeating what I remember from the 'Tinkers Dam' site on the Baen's Bar forum. This is what people who have met her at cons or have (presumably) some other in with her say, for the most part, although I believe I remember her having posted there at least once herself. In fact, if you went over there & poked around, you might find some of my babbling in various sub threads.
I'm all for more of 'em, o'course. But I'm really more of an affecinado of Ukiah & co. It cracked me up that the dates in the first one were just a couple of years ahead of the publication date.