Statistics for occurrence #1 of “Grand Gulf” in chapter 39 of Admiral David D. Porter, The Naval History of the Civil War.:

...ates time to render Vicksburg the Gibraltar of the West, and for a long period it bade defiance to the Army and Navy combined. The Vicksburg miscarriage enabled the enemy to fortify Port Hudson and Grand Gulf , which thus became two formidable barriers against the advance of the Navy. When Vicksburg was invested in 1863 by the Army under Major General Grant, and a large naval force under Rear-Admiral P...

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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Grand Gulf (Mississippi, United States) 858 86 40 0 0 user votes
Grand Gulf (Missouri, United States) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.