Prisoners From the Front, by Winslow Homer, 1866 – This scene is a nod to actions at the 1864 Battle of Spotsylvania Court House, Va., during which Union Brig. Gen. Francis C. Barlow, a cousin of Homer’s, broke through Confederate works and captured several officers. The three Rebel prisoners represent a timeless generational cross-section of combatants, from insecure youngster on the left to defiant officer on the right, with a resigned old veteran standing in between.