...tillery, and two companies of cavalry, including 45 of Capt. Ball's Chester company and Capt. Terry's company, of Bedford. He started at 8 o'clock A. M. They remained Sunday night at a place called Dranesville . On Monday morning, Col. Gregg, with a detachment of cavalry, went forty-five miles down to the Potomac River to make observations. They remained in the vicinity about an hour, and distinctly saw...