Statistics for occurrence #1 of “Capt. Thomas O'Neil” in chapter 1 of Thomas Wentworth Higginson, Massachusetts in the Army and Navy during the war of 1861-1865, vol. 1: prelminary narrative:

...an advance was made early on February 8, the 25th Mass. being placed in the front, with Co. A, Capt. (afterwards general) Josiah Pickett in command, and preceding as skirmishers, supported by Co. E ( Capt. Thomas O'Neil ). All the regiments took part in the battle and sustained losses; the 21st especially distinguishing itself by a brilliant charge, under the command of Lieutenant-Colonel Maggi, driving the Confeder...
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