I would just say never say never or that can't possibly happen because odd unexplainable things do happen.
I never asked to have the dream and never was into civil war stuff at the age I had the dreams.I remember the smells in the dream too, the musty wet wool coat, the morning dew and the dirt road.
All those smells came rushing back as saw the figure walking away from me in the morning fog.
That I guess is what spooked me so much,it wasn't a pleasant feeling I will say that.
I wanted out of there in a hurry.