May I say something?
My friend's husband who lives in the now old Brownsville area dug up/found what would have been some sort of hosptial transport back years ago. The story goes, it was left outside and someone stole it. I have heard that lady tell the story many times about that as I have such a high interest in the Civil War.
So, after all of this discussion, it is very possible that a hospital was in the area.