Statistics for occurrence #1 of “upper Mississippi” in chapter 89 of Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 9.:

...lve thousand to fifteen thousand men, distributed from Berwick's Bay to Alexandria and Grand Ecore on Red River. These positions covered every line of communication to the Red River country and the upper Mississippi . The first object was to reduce the works at Port Hudson. This could be done by an attack directly upon the fortifications, or by getting possession of the Red River for the purpose of cutting ...
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