SHARPSBURG, Md, September 21, 1862.
Lieut C. N. JACKSON,
Acting Assistant Adjutant-General.
SIR: I have the honor to submit the following report of the part taken by the Sixth Regiment, Pennsylvania Reserve Volunteer Corps, in the action of September 16 and 17, 1862, near Sharpsburg, Md.:
The regiment was on the right of Seymour's brigade, and advanced into the woods occupied by the enemy about 6.30 p. m. on the 16th instant. After reaching the woods a few rounds were fired into the corn-field in front occupied by the enemy. The batteries of the enemy shelled the woods until after dark. The enemy began an attack with musketry at daylight on the 17th instant, and shortly after opened on the woods with shot and shell. When Hartsuff's brigade advanced the regiment was ordered to take post about 200 yards farther to the left. It remained in this position until all of our troops had retired and the woods was occupied by a large force of the enemy, when it retired. The conduct of the officers and men was good on the 16th. On the 17th the regiment was very niuch reduced in numbers by men taking the wounded to the rear without my orders.
Very respectfully, your obedient servant,
WILLIAM SINCLAIR,
Colonel Sixth Regiment, Pennsylvania Reserve Volunteer Corps.
Source: OR1
1 US War Department, The War of the Rebellion: a Compilation of the Official Records of the Union and Confederate Armies (OR), 128 vols., Washington DC: US Government Printing Office, 1880-1901, Vol. 51/Part1 (Ser #107), pp. 147-148 [AotW citation 123]