In the move forward two divisions of my cavalry took the advance,
Gregg crossing the Rapidan at Ely's ford and Wilson at Germania ford.
Torbert's division remained in the rear to cover the trains and
reserve artillery, holding from Rapidan Station to Culpeper, and
thence through Stevensburg to the Rappahannock River. Gregg crossed
the Rapidan before daylight, in advance of the Second Corps, and when
the latter reached Ely's ford, he pushed on to Chancellorsville;
Wilson preceded the Fifth Corps to Germania ford, and when it reached
the river he made the crossing and moved rapidly by Wilderness
Tavern, as far as Parker's Store, from which point he sent a heavy
reconnoissance toward Mine Run, the rest of his division bivouacking
in a strong position. I myself proceeded to Chancellorsville and
fixed my headquarters at that place, whereon the 5th I was joined by
Torbert's division.

Meanwhile, General Meade had crossed the Rapidan and established his
headquarters not far from Germania ford. From that point he was in
direct communication with Wilson, whose original instructions from me
carried him only as far as Parker's Store, but it being found, during
the night of the 4th, that the enemy was apparently unacquainted with
the occurrences of the day, Meade directed Wilson to advance in the
direction of Craig's Meeting House; leaving one regiment to hold
Parker's Store. Wilson with the second brigade encountered Rosser's
brigade of cavalry just beyond the Meeting House, and drove it back
rapidly a distance of about two miles, holding it there till noon,
while his first brigade was halted on the north side of Robinson's
Run near the junction of the Catharpen and Parker's Store roads.

Up to this time Wilson had heard nothing of the approach of the Fifth