Statistics for occurrence #1 of “Arkansas river” in chapter 3, page 63 of Col. John M. Harrell, Confederate Military History, a library of Confederate States Military History: Volume 10.2, Arkansas:

...partment, where he commanded a brigade composed of Shaler's regiment, Shaver's Seventh regiment, Col. R. S. Dawson's Sixteenth regiment, and the regiment of Col. S. H. Grinsted, in the defense of the Arkansas river and Little Rock, September, 1863, and was under Major-General Churchill at the battles of Pleasant Hill and Jenkins' Ferry, in 1864. Maj. J. A. McNeely, by succession, became colonel of the Thirteent...
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