Statistics for occurrence #1 of “Col. A. S. Hartwell” in chapter 12, page 236 of Emilio, Luis F., History of the Fifty-Fourth Regiment of Massachusetts Volunteer Infantry , 1863-1865:

... One Hundred and Twentyseventh, One Hundred and Forty-fourth and One Hundred and Fifty-seventh New York, Twenty-fifth Ohio, Thirtysecond, Thirty-fourth, and Thirty-fifth United States Colored Troops; Col. A. S. Hartwell 's Second Brigade, of the Fifty-fourth and Fifty-fifth Massachusetts, Twenty-sixth and One Hundred and Second United States Colored Troops. Lieut.-Col. William Ames commanded the artillery, consisting...
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