Summers served on board the U.S.S. Ticonderoga in the attacks on Fort Fisher, 13 to 15 January 1865. The ship took position in the line of battle and maintained a well-directed fire upon the batteries to the left of the palisades during the initial phase of the engagement. Although several of the enemy's shots fell over and around the vessel, the Ticonderoga fought her guns gallantly throughout three consecutive days of battle until the flag was planted on one of the strongest fortifications possessed by the rebels.