Statistics for occurrence #1 of “Capt. Josiah Porter” in chapter 1, page 50 of Thomas Wentworth Higginson, Massachusetts in the Army and Navy during the war of 1861-1865, vol. 1: prelminary narrative:
...he 15th (Col. Charles Devens, Jr.), the 16th (Col. P. T. Wyman), the 18th (Col. James Barnes), the 19th (Col. E. W. Hincks), the 20th (Col. W. R. Lee), and the 22d (Col. J. A. Gove). The 1st Battery ( Capt. Josiah Porter ), the 3d (Capt. A. P. Martin), and the 5th (Capt. G. D. Allen) were also included in the Army of the Potomac.
The distribution of these forces was as follows:—
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