A. J. Bennett, private , First Massachusetts Light Battery, The story of the First Massachusetts Light Battery , attached to the Sixth Army Corps : glance at events in the armies of the Potomac and Shenandoah, from the summer of 1861 to the autumn of 1864.

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[12] the right of the main line. He was commissioned major general of volunteers, July 4, 1862. He led his division in the victorious engagement on the left at South Mountain; and at Antietam, three days later, the timely arrival of Slocum's and Smith's commands of the Sixth Corps without doubt saved to the Federals the fortunes of the day. In October, he was assigned to the command of the Twelfth Corps, which he led at Chancellorsville, likewise at Gettysburg, where he commanded the right wing of the Army of the Potomac. The Twelfth Corps was afterwards transferred to the Army of the Cumberland, and in April, 1864, Gen. Slocum was assigned to the command of the district of Vicksburg.

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September 2, 1864, the Twentieth Corps, the advance of Sherman's army commanded by Gen. Slocum, was the first to enter Atlanta; thenceforth he participated in all the engagements of the ‘march to the sea,’ and of the northward movement in pursuit of Johnston's army. Upon the disbandment of the volunteer forces in 1865, he resigned and resumed the practice of law, in his native state. He subsequently served in the Forty-first and Forty-second Congress, and is at present, 1886, a member of the National House of Representatives from southern New York. He resides at Brooklyn.