Statistics for occurrence #1 of “Louisiana” in chapter 39 of Admiral David D. Porter, The Naval History of the Civil War.:
... the principal towns in the West, and the occupation of the surrounding country by the Union forces, had relieved a large number of troops from siege-duty, who could now be employed from Tennessee to Louisiana .
The power of the Navy at the same time was largely increased on the Western rivers by the addition of some 800 guns mounted in war-vessels improvised from merchant steamboats; and these aided in...
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