Photo Manipulation - Civil War Reenactment

I pride myself on the fact that I don't "photoshop" my images (I don't even own photoshop!).  I will do some manipulation in the digital darkroom - things like adjusting the exposure, changing the white balance - or making a color photo black and white.  I recently visited a civil war reenactment and did some minor changes to make them look more like they came from that era -  Here are some of them:

     

      So, what do you think?