Statistics for occurrence #1 of “Mississippi River” in chapter 8, page 98 of William F. Fox, Lt. Col. U. S. V., Regimental Losses in the American Civil War, 1861-1865: A Treatise on the extent and nature of the mortuary losses in the Union regiments, with full and exhaustive statistics compiled from the official records on file in the state military bureaus and at Washington:

...Logan, McArthur and Quinby,--formerly the Third, Sixth and Seventh Divisions of Grant's Army,--and Major-General J. B. McPherson was assigned to its command. It was engaged in the operations on the Mississippi River prior to the campaign in the rear of Vicksburg, and then took a prominent part in the series of battles which resulted in the investment of that place. Its three divisions entered upon that campaig...
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