@james
To be rational I should have used "unexplained entities" as I really don't know that they were 'Demons' for a certainty. From my wife's account (which I have no reason to doubt, and she has no reason to embellish), the entities had names, and moved the (wooden) ouija pointer without help.
@Sweet
Sorry, I didn't write a transcript. My wife first told me about it two years before we were married. She was asking about my height. I wasn't sure so we took a measurement, she recalled the ouija board prediction was exact to the millimeter. We discussed it for a bit, then I asked what else they told her. She said they predicted my hair color, weight, eye color, the year we would marry, number and sex of children, year and month of their birth, the country she would emigrate to. At that time I thought the height and appearance was most likely just coincidence and the rest was BS.
While some of it could be dismissed as mere chance, the odds of all those things happening exactly as predicted, years in advance, aren't great.