Statistics for occurrence #1 of “Port Hudson” in chapter 28 of Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 7.:

... object in view and one of vast importance, namely: A diversion to force the enemy to raise the siege of Port Hudson. He now has his choice, to lose New-Orleans or to abandon his operations against Port Hudson , and retire with his beaten and demoralized army into that city.
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Port Hudson (Louisiana, United States) 5,174 214 536 2 0 user votes
Port Hudson (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.