Hi Debby,
That is both amazing and fascinating, I've done a lot of reading on reincarnation over the years, however, the one author I would strongly suggest you reference is Dolores Cannon. She does regression work on the somnambulistic (deepest) levels and often encounters beings from a wide variety of strange planets and/or dimensions now incarnating on earth- this was not always such a prevalent occurrence, however, with the required changes in consciousness many 'volunteers' from higher dimensional realms have been incarnating here to bring a greater light to the planet and offset the pervasive darkness or heaviness of those too closely attached to the earth.
Here is an interview she did recently on Coast to Coast, there was a good interview on Conscious Media Network although I just checked and it appears they are in the process of fixing that video.
Your daughter is at really the best age for remembering, you should at this time either keep a journal or a log of some kind as she will surely forget it the more she adapts and assimilates to human consciousness and psychosocial conditioning by the culture surrounding her. If you wouldn't mind, I'd be interested in knowing what her full birthdate was, it could provide some more interesting info from a numerological aspect, or just go to any numerology site yourself and plug the info in- you may find it very interesting.