No doubt those are interesting sites, but the painting you've referenced is the Battle of Wilson's Creek. Its companion piece shows the Battle of Westport, and might specifically show Byram's Ford. I am not sure, but we have members who can tell us for sure.
You mentioned the death site of George Todd, and those are the kinds of sites that I like to try to find in my home state of Missouri.
@Booner and I visited the grave of John Noland in Independence a couple of years ago. At the time, neither of us realized that George Todd's grave is in the same cemetery, and not very far away from Noland. With the help of local guides, I also visited the grave of Archie Clements and Bill Anderson. I said at the time that I did this not so much to honor them, but out of curiousity and to make sure they were STILL dead. But seriously, the guerrilla fighters are very interesting to me and they represent so much of the war as it was fought in Missouri.
A couple of years ago I launched a thread here which I titled "The Death of Little Archie Clements" in which I attempted to retrace Archie's exact movements in Lexington, Missouri on the day he died. Again, I had to rely on local historians who provided historic atlases of the town, showing how the buildings were arranged just after the war. I had access to other sources, as well, and it was a successful thread. Mulligan's fort in Lexington and the Battle of the Hemp Bales are better known sites and events, but Archie's last fight interested me more.