Dranesville, Va.. Dec. 20, 1861.

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Ord's Brigade, Battery A, 1st Pennsylvania Artillery', and 1st Pennsylvania Cavalry. While an expedition under Brig. -Gen. E. O. C. Ord was moving in the vicinity of Dranesville in search of forage, it was attacked by four regiments of Confederate infantry' and a battery. The attack occurred on the Leesburg pike, just outside of the town of Dranesville. where the Federal column had halted to rest. Using the village as his right, Ord deployed his forces and placed his battery so as to sweep the road. About 3:30 p. in., after the battle had been in progress some 3 hours, Ord ordered an advance and at the point of the bayonet the Confederates were driven from their position. Pursuit was given for some 4 or 5 miles and a battery captured. The Federal loss in the engagement was 7 killed and 61 wounded. The Confederate casualties were heavier, 43 killed, 143 wounded and 8 missing.

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Source: The Union Army, Volume 5, page 363