Keith - John Allen Mathews grandson was John Joseph Mathews, who wrote a book, " The Osages - Children of the Middle Waters," published in 1961. Pages 629 - 634 tell of John Allen Mathews' exploits, and death, during the war. You might find this story from a different perspective to be interesting. /// May I also add that here in Bates County there is a strong connection to this story as well. John Allen Mathews married the Osage daughters of William Shirley Williams, aka: Old Bill Williams. He was living with the Osage here in southern Bates County in 1821 when missionaries from New England arrived to establish Harmony Mission. He had two daughters. John Allen married one, she died, and he married the other. Old Bill Williams gained recognition as a mountain man and guide. Williams, Arizona is named for him, as well as a mountain range and river in the area. /// I would imagine the book could be found online but if not, we have a copy here at the Bates County Museum in Butler.