Statistics for occurrence #1 of “Port Hudson” in chapter 39 of Admiral David D. Porter, The Naval History of the Civil War.:
...ave the Confederates 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...
† 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.