Fitzhugh Lee
On July 16, Brig. Gen. David McM. Gregg's cavalry approached Shepherdstown where the brigades of Brig. Gens. Fitzhugh Lee and John R. Chambliss, supported by Col. Milton J. Ferguson's brigade, held the Potomac River fords against the Union infantry. Fitzhugh Lee and Chambliss attacked Gregg, who held out against several attacks and sorties, fighting sporadically until nightfall, when he withdrew.