... skirmish with guerrillas about two miles east of Brentsville, Va. He was out with a scouting-party of some fifty men of the Thirteenth Pennsylvania cavalry, who, as they were crossing a bridge over Cedar Run , at the point above mentioned, were suddenly fired upon by a band of guerrillas concealed in a pine thicket a short distance off the road. His men were driven back across the bridge, but there he...