Guy, I'd be really interested in getting a copy of those dispatches.
I'm researching the Osages' involvement in the war, and details about the Osage Battallion are scarce to come by.
Also, would be interested to hear more of your theory re: the "Channers" Osage. The only reference I've been able to find of them, thus far, has been as a more generic term for the Arkansas band, which we all know wasn't assimilated into the Cherokees. Could be that you're referring to a specific band or town?