I have a photo of my 2nd g-grandfather and discovered another photo on the Internet that looks like him that is labelled "Unknown Confederate States of America Prisoner of War" I know that my ancestor died as a prisoner of war in the camp where the photo was taken. The resemblance to my photo taken before the war is startling. The poses are nearly identical and the faces seem to be the same man.
Can an expert look at the photos and determine whether both are the same man? I have posted the 2 photos on his page: https://www.wikitree.com/wiki/Wilson-34856