ken back when I was researching on Round Mountain I came across an article that stated a cannon ball was found at the river crossing when they were building the bridge to manford. The article as I recall said it was taken to the University of Tulsa Library. I never checked up on it however.
What I would say is this. I think it is safe to assume that not every engagment in this state during the war has been documented or those documents have been lost.
spondulix