Mike, I found out that Pvt. Thomas J Caldwell was captured at Fort Donelson on Feb 16th 1862. He was held at Camp Morton. He survived the ordeal, and later died in 1893. I actually found a picture of his brother Edmond, but not Thomas. I am not sure if photographs were common for lower rank soldiers. This is all I have found so far. Karen Ferguson Roach GGGrandaughter of Pvt. Thomas J Caldwell