Captured Confederate cavalrymen in a Pennsylvania prison, following John Hunt Morgan's 1,000 mile raid into Indiana and Ohio (they really ought to make a movie about Morgan's 1863 Raid).
From left, Captain William Curry, 8th Kentucky Cavalry; Lieutenant Andrew Church, 8th Kentucky Cavalry; Lieutenant Leland Hathaway, 14th Kentucky Cavalry; Lieutenant Henry Brown, 10th Kentucky Cavalry; Lieutenant William Hays, 20th Kentucky Cavalry.