... to advance toward Centerville. Meanwhile, McDowell, unordered, had detached Ricketts's division and sent it toward Thoroughfare Gap; so that it was no longer available for the directed movement on Centerville . Late in the afternoon, Kearny occupied Centerville; Jackson's rear-guard retreating by Sudley Springs; while part of his force took the Warrenton turnpike toward Gainesville, impeding our advanc...