Statistics for occurrence #1 of “Yallabusha” in chapter 26 of Admiral David D. Porter, The Naval History of the Civil War.:

...rty co-operation on the part of the Army. Fort Pemberton, though well fortified and in a strong position, ought to have been taken. This would have given the Federals command of the Tallahatchie, Yallabusha and Yazoo Rivers, and of course a clear way to the rear of Vicksburg. On the 18th of March, Lieutenant-Commander Watson Smith, owing to aberration of mind, gave up the command of the Naval force ...
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Entity Corpus Doc Corpus Doc  
Yallabusha (Mississippi, United States) 30 4 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.