Statistics for occurrence #1 of “Admiral Porter” in chapter 44 of Admiral David D. Porter, The Naval History of the Civil War.:

...nst such an energetic commander, Banks was intent on a march on Shreveport, although in a letter to Halleck he says: The rivers and bayous have not been so low in this State for fifty years, and Admiral Porter informs me that the mouth of the Red River, and also the mouth of the Atchafalaya, are both hermetically sealed to his vessels by almost dry sand-bars, so that he cannot get any of the vessels into a...
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