In the 1930s several British airmen who had died in the crash of a dirigible, and another British pilot who died attempting to cross the Atlantic in 1928, came back to communicate information that was important, and which proved the survival of their personalities after death. Likewise in the 1970s an American pilot came back to make sure his family knew that "all was well" in his current condition. Their stories were told in detail in two separate books by the respected investigative author John Fuller.
