The Sixth Regiment United States colored troops was the second which was organized at Camp William Penn, near Philadelphia, by Lieutenant-Colonel Wagner, of the Eighty-eighth Pennsylvania Volunteers. The regiment left Philadelphia on the 14th of October, 1863, with nearly eight hundred men, and a full complement of officers, a large majority of whom had been in active service in the field. The regiment reported to Major-General B. F. Butler, at Fortress Monroe, and were assigned to duty at Yorktown, Virginia, and became part of the brigade (afterwards so favorably known), under the command of Colonel S. A. Duncan, Fourth United States colored troops. Here they labored upon the fortifications, and became thoroughly disciplined under the tuition of their colonel, John W. Ames, formerly captain of the Eleventh Infantry, United States army, ably seconded by Lieutenant-Colonel Royce and Major Kiddoo. During the winter, the regiment took a prominent part in the several raids made in the direction of Richmond, and exhibited qualities that elicited the praise of their officers, and showed that they could be fully relied upon in more dangerous work. The regiment was ordered to Camp Hamilton, Virginia, in May, 1864, where a division of colored troops was formed, and placed under the command of Brigadier-General Hinks. In the expedition made up the James River the same month, under General Butler, this division took part. The white troops were landed at Bermuda Hundreds. Three regiments of colored men were posted at various points along the river. Duncan’s brigade landed at City Point, where they immediately commenced fortifications. The Sixth and Fourth Regiments were soon after removed to Spring Hill, within five miles of Petersburg. Here they labored night and day upon those earthworks which were soon to be the scene of action which was to become historical. The Sixth was in a short time left alone, by the removal of the Fourth Regiment to another point. On the 29th of May, the rebel forces made an assault on the picket-line, the enemy soon after attacking in strong force, but were unable to drive back the picket-line any considerable distance. The Fourth Regiment was ordered to the assistance of the Sixth; but our forces were entirely too weak to make it feasible or prudent to attack the enemy, who withdrew during the night, having accomplished nothing.