There were military hospitals all over the place. The town itself was very small, not sure how much care the civilians provided. I'm sure some. I don't recall the exact circumstances behind these two and why they are still there. Most bodies were removed shortly after the war was over. They had the usual mass graves but unlike other battlefields like Shiloh, they removed them and reburied them. The Union troops either went home or were buried in the national cemetery. The Confederates for the most part went to Southern cities, mostly Richmond's Hollywood cemetery.