Statistics for occurrence #1 of “First Sergt. William R. Driver” in chapter 15 of Waitt, Ernest Linden, History of the Nineteenth regiment, Massachusetts volunteer infantry , 1861-1865:

...t. Maj. Edgar M. Newcomb, who fearlessly exposed himself to rally the ranks broken by the tremendous volleys the regiment had to encounter in the fight at Nelson's Farm, to be Second Lieutenant. First Sergt. William R. Driver , for like conduct in same battle, to be Second Lieutenant. First Sergt. J. G. B. Adams, for his coolness and bravery in the affair before Fair Oaks on June 25th and in the separate encounters in...
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