Statistics for occurrence #1 of “Mississippi River” in chapter 30 of Admiral David D. Porter, The Naval History of the Civil War.:

...d attack. After a sharp conflict the enemy fled, previously setting fire to the four large steamers in their possession, which before the war had been considered the finest passenger vessels on the Mississippi River . General Herron captured the enemy's rear-guard of two hundred and fifty men and pressed on after the retreating foe, taking prisoners every minute. There were six heavy guns mounted in the enemy...
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