First Brigade, Fifth Division

Colonel F G D'Utassy, commanding the 39th New York Infantry

Thirty-ninth New York Infantry

COLONEL F G D'UTASSY
LIEUTENANT COLONEL A REPETTI
MAJOR (IN THE FIELD) G E WARING, JR.

Company A: CAPT. C SCHWAR
Company B: CAPT. A H UNWERTH
Company C: CAPT. C OSNAGHI
Company D: CAPT. J SCHIMT
Company E: CAPT. J SIEGL
Company F: CAPT. F TAKATS
Company G: CAPT. L TASSILLIER
Company H: CAPT. O BERNSTEIN
Company I: CAPT. J TORRENS
Company K: CAPT. C WIEGAND
Pioneer Company: SERG. J DWYER Temporarily organised with 14 men and a corporal on 21 July, 1861, and assigned to First Lieutenant F E Prime to construct a redoubt with two embrasures.

Sources

"The battery near the road from Fairfax Court House having been examined by Colonel Miles, the pioneers of the Garibaldi Guard were directed to construct a (redoubt) with two embrasures, so as to sweep the old Braddock road, and resist any attempt to outflank us from the left, by Union Mills road or road from Gaines' Ford."

Official Report, First Lieutenant F E Prime, U. S. Corps of Engineers (See United States Corps Enginners).

"Farther back along the same road, Lieutenant Frederick E Prime, US Engineers, oversaw the pioneers of the Garibaldi Guard, or 39th New York Infantry, as they constructed a redoubt with two embrasures. According to Prime, this work would sweep the Old Braddock road, and resist any attempt to outflank us from the left, by Union Mills road or road from Gaines' Ford."

American Civil War Fortifications (2): Land and Field Fortifications, byRon Field and illustrated by Peter Dennis

New York in the War of Rebellion, 1861–1865 (Volume 3), by Frederick Phisterer.

Notes

The 39th New York Infantry was mustered in the service of the United States, at Washington D C, for three years, on 6 June 1861. The regiment was mustered out on 1 July, 1865. The 39th New York Infantry was in reserve at Centreville and not engaged in the battle proper on 21 July, 1861. On 25 May, 1863, the three years' men of the regiment were transferred to the 121st New York Infantry. On 31 May, 1863, the regiment was consolidated into four companies: A, B, C and D; new companies were organised in the field from recruits: Company E on 8 December; Company F on 14 December; Company G on 19 December; Company H on 30 December, 1863; I and K in January, 1864. Companies A, B, C and D were mustered out at New York City, on 24 June, 1864, those not entitled to be discharged having previously been transferred to other companies; and the regiment, six companies, E, F, G, H, I and K, retained in service. In October, 1864, a new Company D, enlisted principally at Malone for one year, joined the regiment and on 2 June, 1865, the members of the regiment not to be mustered out with it were transferred to the 185th New York Infantry.

The Military District of the Potomac was established on 25 July, 1861 by consolidating the Military District of Washington and the Department of Northeastern Virginia and redesignated the Department of the Potomac on 15 August, 1861. The 39th New York Infantry was assigned to Brigadier General L Blenker's brigade, Army of the Potomac, uin August 1861.

Orders of Battle