A fascinating figure in the history of the Osage Indians and the Missouri-Kansas Border war is John Allen Mathews, a white man who married into the Osages, became wealthy and influential among the Osage by virtue of his position as blacksmith and treading post owner/operator, and was a leader in seeking to keep settlers from illegally settling upon the Osage reservation in Kansas Territory. I know this has more to do with Kansas than Missouri, but I was wondering if anyone had some reading recommendations. At present, my information comes primarily from the two articles lined below. Any suggestions would be most appreciated!

https://members.tripod.com/~CIVILWAR_KS/MATHEWS-2.html

https://www.acatholicmission.org/8-a-dangerous-balance---the-civil-war.html