Statistics for occurrence #1 of “Col. Hugh K. Aiken” in chapter 19 of Brigadier-General Ellison Capers, Confederate Military History, a library of Confederate States Military History: Volume 5, South Carolina:

...de, of Wilcox's division, on the Rapidan. The South Carolina cavalry brigade, under Gen. M. C. Butler, composed of the Fourth regiment, Col. B. Huger Rutledge; Fifth, Col. John Dunovant, and Sixth, Col. Hugh K. Aiken , was assigned to General Hampton's division. Garden's battery, the Palmetto artillery under Captain Fickling, the Pee Dee under Zimmerman, and Hart's battery continued in their former assignments....
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