Statistics for occurrence #1 of “Wm. R. McCullough” in chapter 11 of Brig.-Gen. Bradley T. Johnson, Confederate Military History, a library of Confederate States Military History: Volume 2.1, Maryland:

...ieutenant-Colonel, James R. Herbert; Major, Wm. W. Goldsborough; Surgeon, Richard P. Johnson; Assistant-Surgeon, DeWilton Snowden; A. Q. M., John E. Howard; Adjutant, J. Winder Laird; Sergeant-Major, Wm. R. McCullough ; Q. M. Sergeant, Edwin James; Ordnance-Sergeant, Francis L. Higdon; Chief Musician, Michael A. Quinn. Company A—Captain, Wm. H. Murray, George Thomas. First-Lieutenant, Clapham Murra...
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