I took this picture about ten years ago, while on the battlefield at Cold Harbor.  You see that gray hazy area around the middle?  I am not saying its a ghost or it is not.. I don't know what it is.  I didn't see it when I took the picture, only after it was developed.  I wasn't smoking a cigarette at the time, so its not smoke. And there was no fog.  It was a clear day, midafternoon.  And it doesn't show up on the negative.

I have always wondered about it.  You be the judge.