Statistics for occurrence #1 of “Lieutenant William S. Barton” in chapter 7, page 670 of Comte de Paris, History of the Civil War in America. Vol. 4.:

...Captain Luther F. McNeal17th Infantry. Captain John L. Steele26th Infantry. Lieutenant Gavine D. Hunt3d Infantry. Captain John P. Hurley5th Infantry. Captain Upton Wilson5th Infantry. Lieutenant William S. Barton 9th Infantry.
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