Statistics for occurrence #1 of “Lieutenant Henry Heaton” in chapter 7.18 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: The Opening Battles. Volume 1.:

...ed the other two rounds, and limbered up and moved away, just as the Rockbridge Artillery, under Lieutenant Brockenbrough, came into position, followed a moment later by the Leesburg Artillery, under Lieutenant Henry Heaton . Pendleton, supposed by me still to be captain of the first, as Rogers was of the second, were not with their batteries when they unlimbered. But Heaton and Brockenbrough were equal to the occasi...
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