Statistics for occurrence #1 of “Berwick bay” in chapter 9, page 90 of John Dimitry , A. M., Confederate Military History, a library of Confederate States Military History: Volume 10.1, Louisiana:

...and having heard of the arrival of the Confederate vessels Queen of the West and Webb at Butte-à--la-Rose, he naturally wanted some gunboats for himself. Without a superior force of these at Berwick bay he could not longer hold his position on the Atchafalaya. On April 8th, Banks left New Orleans on a new expedition. He reached Brashear City, where Weitzel's brigade was stationed, and immediat...
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Entity Corpus Doc Corpus Doc  
Berwick Bay (Louisiana, United States) 85 32 5 0 0 user votes

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