There definitely was a cemetery there in the 1800s. On Google Earth I see the square you are referring to. Funny how some research makes you want to go hop in the car and go and this entire thread is one of those.
Okay, I have finally had a chance to start organizing this, and trying to make sense of it all. I note that the comment I posted last night about the house and barn in the corner of William H. Long plat site probably isn't relevant here. With all the information overload I had by progression of events backwards. Long's land is where the fight finished -- the fight started next door at the Widow Turners. From the old plats, the there is a house in just off center of the 1864 Widow Turner/1876 Deatherage/1897 Sue Miller half section that has the requisite orchard on site. I see on Google Earth that particular site appears to be next to a pond, has a farmhouse, a couple of outbuildings, and some grain bins.
Anyway, this thread is getting out spread out with a lot of tentacles so I am going to regroup it and start a new one as a continuation of this one so it's easier to focus.