Statistics for occurrence #1 of “Blackwater, in southeast Virginia” in chapter 16 of Brigadier-General Ellison Capers, Confederate Military History, a library of Confederate States Military History: Volume 5, South Carolina:

...eut. S. C. Gilbert, in Alexander's battalion of Walton's reserve artillery. Gen. Micah Jenkins' South Carolina brigade, of Pickett's division, Longstreet's corps, was detached for special duty on the Blackwater, in southeast Virginia , under Maj.-Gen. D. H. Hill. In the Third army corps (A. P. Hill's), South Carolina was represented by McGowan's brigade, Hill's light division —North Carolinians, South Carolinians and Geor...
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