Ghost on the Battle Grounds?

My wife and I went to Anteitam and wandered the battle grounds, looking at the landmarks and enjoying a cool spring day, despite the rain. We were alone in the middle of this field. Almost no one was out that day because of the weather. I took about 40 photographs on the famous cornfield in all different directions. Then last week I downloaded some podcasts and was looking through our photographs, which were taken on a Sony digital camera. I zoomed in on the area in the photograph along the fenceline (indicated by the red circle) and this is what I saw.

I don't know if I'm matrixing or if it's a man standing there, but I am sure we were alone. At least I thought we were. Does anyone else see what looks like a soldier standing there?