National Geographic: Remembering Sultana
Article by Stephen Ambrose describing the disaster in which more than 1,700 Union soldiers and POWs died when three of the Sultana's four boilers exploded.
Sabotage of the Sultana...
Offers arguments by D. H. Rule and Gene Eric Salecker for and against Rule's 2002 argument that Sultana explosion was due to sabotage.
Wikipedia: Sultana (Steamboat)
Hyperlinked article devoted to the Mississippi River paddlewheeler which was destroyed in an explosion on April 27, 1865, the greatest maritime disaster in United States history.