Unidentified civil war

I apologize for the poor quality but these were copied (xeroxed) with the photos (carte de visites) still in their plastic sleeves. I plan to return to reshoot with the images out of the sleeve.

These photos came from collection no. 242 Grand Rapids Historical Collections, Grand Rapids (MI) Public Library. They are unidentified although several have the photographer stamped on the reverse side (click on a photo for details).