For years Dr. Jim Tucker (official website) has been researching curious cases of little children of ages 2-3 who have been telling of living past lives. In one case, a 2-year-old boy was having recurring bad dreams at night of himself in a fighter plane named “The Natomas” during WWII that was shot down by the Japanese over Iwo Jima. The child gave startling details which his non-believer father checked out and learned the child was telling the truth. The book contains other interesting accounts. See this Amazon.com link.