Hi Roger. Anderson and Brown have been fixtures on the Canadian folk scene for a number of years now. Can't say if they ever were married.(to each other) They've separated their musical partnership recently and I know that Ken Brown plays a lot with Ken Perlman. I've watched Mary Anderson up close a number of times and have wanted to ask whether she lost the hand in an accident or if it was a birth condition. It may well be a sensitive area so I've never asked, although I imagine she's been asked about it many times by others. Guess I was just trying to be "cool". Lovely harpist and I believe she has a number of CDs out.