Statistics for occurrence #1 of “Mississippi river” in chapter 4, page 89 of Col. John M. Harrell, Confederate Military History, a library of Confederate States Military History: Volume 10.2, Arkansas:

...apidly toward St. Louis. Gov. Isham G. Harris had written Van Dorn, March 7th, from Clarksville, Tenn., that General Beauregard desired Van Dorn to join his forces with those of Beauregard on the Mississippi river , if possible. To this General Van Dorn replied, March 16th, that he would unite all his troops at Pocahontas, about the 7th of April, and would have about 20,000, maybe more; that the enemy in Arka...
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