the effective force of the
Nineteenth Corps to about 4,200, most of whom spent the night in
following the windings of the road that marks the long outline of
the northern fortifications. On the morning of the 14th, the
roll-call accounted for 192 officers and 2,987 men of the corps,
representing ten regiments, in the bivouacs that lay loosely
scattered about Tennallytown. On the 14th these detachments marched
ten miles and encamped beyond Offutt's Cross-Roads, where they were
joined by Battery L of the 1st Ohio, temporarily lent to the division
from the artillery reserve of the defences of Washington. Emory
himself arrived during the day and assumed command of the division,
and Dwight, relieved from duty as Banks's chief of staff, came in
the evening to rejoin the 1st brigade. Gilmore, who found himself
in Washington without assignment, had been given command of the
Nineteenth Corps, but happening to sprain his foot badly he was
obliged to go off duty after having held the assignment nominally
for less than a day. Thereupon Emory once more took command of
the corps, and the First division fell to Dwight.

Moving by the river road, Wright, with Getty's division, was at
Poolesville on the night of the 14th, with the last of the Nineteenth
Corps eleven miles in the rear. But Early had already made good
his escape, having crossed the Potomac that morning at White's
Ford, with all his trains and captures intact, while Wright was
still south of Seneca Creek.

The next day Emory closed up on Getty at Poolesville, and Halleck
began sending the rest of the Sixth Corps there to join Wright.

In the Union army the impression now prevailed that Early, having
accomplished the main object of his diversion, would, as usual,
hasten to rejoin Lee at Richmond. Wright, therefore, got ready to
go back to Washington, but Early was in fact at Leesburg, and word
came that Hunter, whose forces were beginning to arrive at Harper's
Ferry, after their long and wide excursion over the Alleghanies
and through West Virginia, had sent Sullivan's division across the
Potomac at Berlin to Hillsborough, where it threatened Early's
flank and rear while exposing its own. Therefore Wright felt
obliged to cross to the support of Hunter, and on the morning of
the 16th of July the Sixth Corps, followed by Emory's detachment
of the Nineteenth, waded the Potomac at White's Ford and encamped
at Clark's Gap, three miles beyond Leesburg. But Early, by