I found your site (quite interesting, by the way) when a gopher was "helping" me try to solve a mystery proposed by a friend. The story involves a character named Dagney Taggert (sic?) and I am trying to find out who/what Dagney Taggert is/was. (Sounds like an Ayn Rand character to me.) I noted that all good things involve your cats, one of whom is named Dagney. Would you ask the origin of her name?
So how did these names emerge? 10 years ago, my roommate and Peter's was a guy named Mike Wevrick. He, being a full blown student of objectivism, advocated the our two new kittens be called Dagney and Ragnar, while Peter was in favour of his favourite X-Men, Storm and Pheonix. Somehow, I prefered Mike's names. I think I was enamoured of Dagney Taggart myself at the time, as a powerful and sexual female figure. 2 to 1 won the day. And although Ragnar was hit a year later, Dagney is now over ten. She is indeed a smart and powerful princess, if also a cat.
Thanks for asking!