Union troops passing through at night. Note that this sketch shows a hipped roof on the depot while the daylight scene indicates a gabled roof.
From: The Soldier in our Civil War; a pictorial history of the conflict, 1861-1865, illustrating the valor of the soldier as displayed on the battle-field, from sketches drawn by Forbes, Waud, Taylor, Beard, Becker, Lovie, Schell, Crane and numerous other eye-witnesses to the strife. Vol. 2. New York: Stanley Bradley Publishing Co., 1893, p. 227. Online at Internet Archive here.