Statistics for occurrence #1 of “South Mountain, Md.” in chapter 20 of D. H. Hill, Jr., Confederate Military History, a library of Confederate States Military History: Volume 4, North Carolina:

...kill in detecting the weak points of the enemy and boldness and persistence in attack. While leading a desperate charge at Malvern Hill he was severely wounded. His next serious engagement was at South Mountain, Md. , where his brigade, with the others of D. H. Hill's division, held back half of McClellan's army till nightfall. Three days later at Sharpsburg, on September 17, 1862, he was for the last time dist...
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