Statistics for occurrence #1 of “Port Hudson” in chapter 12, page 120 of John Dimitry , A. M., Confederate Military History, a library of Confederate States Military History: Volume 10.1, Louisiana:

...cal. Sometimes it happens, says Herodotus, speaking of the defeat of the Persians at the same time at Plataea and Mycale, that two mortal blows strike the unhappy on the same day. The surrender of Port Hudson to General Banks (with the fleet) on July 9th, followed, as has been seen, the surrender of Vicksburg to General Grant on July 4, 1863. The surrender of Port Hudson by General Gardner included about...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Port Hudson (Louisiana, United States) 5,174 122 536 0 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.