By rapid marching Early reached Winchester on the 2d of July, and on
the 4th occupied Martinsburg, driving General Sigel out of that place
the same day that Hunter's troops, after their fatiguing retreat
through the mountains, reached Charlestown, West Virginia. Early was
thus enabled to cross the Potomac without difficulty, when, moving
around . Harper's Ferry, through the gaps of the South Mountain, he
found his path unobstructed till he reached the Monocacy, where
Ricketts's division of the Sixth Corps, and some raw troops that had