Letters to Twenty-eighth Regt Pa. Vols

John W. Geary to Twenty-eighth Regt Pa. Vols, March 9, 1862

HEADQUARTERS ADVANCE BRIGADE, Leesburg, Va., March 9, 1862. SIR: On the morning of the 7th I learned there were about 1,000 infantry, some artillery, and between 200 and 300 cavalry…