Statistics for occurrence #1 of “Port Hudson” in chapter 31 of Admiral David D. Porter, The Naval History of the Civil War.:

...he defences along the river, and opened it so thoroughly that there was no danger of its being closed against the Federal vessels. While Farragut was away up the Mississippi, after the passage of Port Hudson , Commodore Morris was left in charge at New Orleans with directions to co-operate with the military commander at that place, and perform all the duties which would have devolved upon the Flag-officer...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Port Hudson (Louisiana, United States) 5,174 132 536 2 0 user votes
Port Hudson (Missouri, United States) 0 0 0 0 0 user votes

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