Morris Island, South Carolina - The Marsh Battery or Swamp Angel After the Explosion, August 22, 1863 (U.S. Civil War) This artwork depicts a scene from the American Civil War, specifically an event that occurred on Morris Island, South Carolina, on August 22, 1863. The title "The Marsh Battery or Swamp Angel" refers to Fort Fremont, a Confederate battery positioned in the marshland of Morris Island, which was a strategic location during the war. The artwork portrays the aftermath of an explosion at this fort. The event is significant in the context of the U.S. Civil War, as it played a part in the Union's successful campaign to capture Charleston and break the Confederate blockade of the city. This artwork serves as a historical record and reminder of these events.