Thule, I don’t have a lot of experiences with deceased souls so I cant adequately address the part of your questions which trend towards children gaining info from the deceased. However, I know that with my own psychic experiences, I pick up information from living persons unknowingly.This is very interesting and would seem to account for many aspects of the reincarnation phenomena. In your belief system, are these memories only available to a child if an older person who experienced these things in life is still alive? Or are these memories available in any case through direct access to the Akashic Records? Your post also makes me think now that the ability to access these encodings could be thought of as a form of time travel.
And, though I have come to believe that there might not be an actual physical limit to how far away the info source might be, most of my confirmed telepathic receipts have been fewer than 50 miles away. I share that point in order to say that the older source for the child’s historical info might not (a) even be an acquaintance of the child nor (b) physically nearby.
I believe that everything is interconnected - past to future - hence my acceptance the idea of the Akashic Records. Further, I believe that info can be tapped. It might even be how the phenomenon of telepathy works generally.