as well as the captured guns, were turned over to General Butler's
provost-marshal, and our wounded were quickly and kindly cared for by
his surgeons. Ample supplies, also, in the way of forage and
rations, were furnished us by General Butler, and the work of
refitting for our return to the Army of the Potomac was vigorously
pushed. By the 17th all was ready, and having learned by scouting
parties sent in the direction of Richmond and as far as Newmarket
that the enemy's cavalry was returning to Lee's army I started that
evening on my return march, crossing the Chickahominy at Jones's
bridge, and bivouacking on the 19th near Baltimore crossroads.

My uncertainty of what had happened to the Army of the Potomac in our
absence, and as to where I should find it, made our getting back a
problem somewhat difficult of solution, particularly as I knew that
reinforcements for Lee had come up from the south to Richmond, and
that most likely some of these troops were being held at different
points on the route to intercept my column. Therefore I determined
to pass the Pamunkey River at the White House, and sent to Fort
Monroe for a pontoon-bridge on which to make the crossing. While
waiting for the pontoons I ordered Custer to proceed with his brigade
to Hanover Station, to destroy the railroad bridge over the South
Anna, a little beyond that place; at the same time I sent Gregg and
Wilson to Cold Harbor, to demonstrate in the direction of Richmond as
far as Mechanicsville, so as to cover Custer's movements. Merritt,
with the remaining brigades of his division, holding fast at
Baltimore crossroads to await events.

After Gregg and Custer had gone, it was discovered that the railroad
bridge over the Pamunkey, near the White House, had been destroyed
but partially--the cross-ties and stringers being burned in places
only--and that it was practicable to repair it sufficiently to carry
us over. In view of this information General Merritt's two brigades
were at once put on the duty of reconstructing the bridge. By
sending mounted parties through the surrounding country, each man of
which would bring in a board or a plank, Merritt soon accumulated
enough lumber for the flooring, and in one day the bridge was made
practicable. On the 22d Gregg, Wilson, and Custer returned. The
latter had gone on his expedition as far as Hanover Station,
destroyed some commissary stores there, and burned two trestle
bridges over Hanover Creek.