In the Hue/Saturation adjustment tool in Photoshop you will find a preset called "Old Style." It might serve your purpose.
Steve Whitcomb wrote:
I am working with a “living historical farm” that tries to show what life was like in the 1800’s. I would like to take photos of people in costume simulating the look and feel of 1860’s portraits, but using modern equipment (Nikon DSLR, Canon printer, Adobe Lightroom or Photoshop). Does anybody have any recommendations? Thanks.