Thank you gentlemen for all your aid and responses.
George, I also ran across the "Flyboys: A True Story of Courage" by James Bradley source in searches and referenced on some of the F-A-G memorial pages. I have already orderer a copy, very reasonably price here
https://www.amazon.com/Flyboys-Story.../dp/0316105848
Good review by Pacific Wrecks
https://www.pacificwrecks.com/reviews/flyboys.html
It will be interesting to see if Bradley details the aircraft involved as well as the crews. I have read about other incidents of Japanese cannibalism however those were of a sustenance nature at by-passed islands. This Chi Chi Jima cannibalism is my first exposure to this ritualistic form with Japanese officers eating parts of their enemy captives.