The last owners did not have it for long then. Did the charitable trust own or rent it.
I have read that Miss Rose made it over to the trust quite some time ago but the online sources are not unanimous about when. One says 1971, another says 1984.
Miss Rose ran the castle as a Christian guest house for many years, and I believe that that continued after she made it over to the trust.
She had attended the same school as I did (decades later) and some time in the 1970s she hosted an old girls' reunion. I wasn't too interested in the reunion, but I was always interested in castles and I took the opportunity to see inside Kilravock. Not that we saw a lot of it; it was an elegant afternoon tea in the drawing room, not a tour of the building. And for some reason, although I have never gone anywhere without a camera, I omitted to take any photographs at all, either inside or out. Probably it was raining and I didn't want to get the camera wet!