(1821-1897) Union brigadier general who commanded the ‘Irish Brigade’ at Vicksburg, breaking the Confederate flank at the Battle of Champion Hill. Scarce S.P., 2.5 x 4 in. sepia, a carte-de-visite featuring a chest-up view of Stevenson in uniform. He signs in full beneath his image in black ink, adding his rank ‘Brig Genl Vols’ beneath the print. Very faintly toned with equally faint bumps to the edges, otherwise in fine condition.