July 8, the enemy attacked at 5 a. m., and the fighting lasted until about 5. p. m. He was driven back about 4 miles, when the division the bivouacked for the night. July 9, attacked the enemy at 4. p. m. and drove him through Funkstown to his intrenchments beyond. Antietam, when he came out with a heavy force of infantry and artillery and gave battle. The division held the crest on our side of the town like veterans until its ammunition was exhausted. Howe's division, of the Sixth Corps, was in easy supporting distance, but had no orders to aid me. At 3 p. m. I could no longer reply with carbines, for want of cartridges, and consequently ordered the division to fall back. A brigade of the Sixth Corps then began to advance, but did not occupy the position that I held when I left the field. There was splendid fighting on the part of the division on the 7th, 8th, 9th, and 10th. There was no faltering or hesitation. Each man went to work determined to carry anything in reason. For the particulars I refer you to the reports of the brigade commanders. July 11, the First and Second Brigades moved in the afternoon to the vicinity of Bakersville. The Reserve Brigade was detached. July 12 and 13, remained at Bakersville, and pushed pickets to within 800 yards of the enemy's intrenchments at Downsville. July 14, at 7 a. m., the division was ordered to advance, and at 7. 30 o'clock it was discovered that the enemy had evacuated during the night. The few remaining scouts were run into the rear guard of Lee's army, which was soon seen in front in on the enemy's rear and flank, and get possession of the road and bridge in their rear. The division succeeded in getting the road, and attacked the enemy in flank and rear, doing him great damage, and scattering him in confusion through the woods and ravines. Our spoils on this occasion were one 10-pounder Parrott gun, one caisson, over 500 prisoners, and about 300 muskets. General Merritt came up in time to take the advance before the enemy had entirely crossed, and made many apposition and sharpshooters on the Virginia side. As our troops neared the bridge swung to the Virginia side.
July 15, the division moved to Berlin.
July 16, moved camp to Petersville.
July 17, remained at Petersville.
July 18, crossed during the afternoon, and encamped near Purcellville.
July 19, marched through Philomont, and encamped on Goose Creek, near Rector's Cross-Roads.
July 20, marched to Rectortown. Detached General Merritt with his brigade to hold Manassas Gap, Gamble to hold Chester Gap, and Devin, with all the train, moved to Salem.
July 21, Merritt in Manassas, Gamble near Chester Gap, finding it already in possession of a superior force of the enemy. General Merritt and Colonel Gamble each had a fight and made captures, for particulars of which see their reports.
July 22, wagon train sent to Warrenton in charge of Sixth New York Cavalry. Devin moved toward Barbee's Cross-Roads.