Statistics for occurrence #1 of “Mississippi River” in chapter 8 of Benson J. Lossing, Pictorial Field Book of the Civil War. Volume 3.:

...my at Little Rock, threatening Taylor's flank, and Rosecrans, who was succeeded by Thomas in the command of the Army of the Cumberland, is at the head of the Department of the Missouri. Between the Mississippi River and the Appalachian chain of mountains little more than guerrilla operations are seen; while near the southern extremity of that chain of hills, at and near Chattanooga, Grant lies with a strong, for...
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