Then they were engaged night and day in harassing the enemy as they marched down to take up their new base at Petersburg, and finally received orders to ride round at full speed to aid in the defense of that place.
They had arrived in the middle of the second day's fighting, and dismounting his men, Vincent had aided the hard-pressed Confederates in holding their lines till Longstreet's division arrived to their assistance.

A short time before the terrible disaster that befell the Federals in the mine they exploded under the Confederate works, he was with General Wade Hampton, who had succeeded General Stuart in the command of the cavalry, when General Lee rode up.
"They are erecting siege works in earnest," General Lee said.

"I do not think that we shall have any more attacks for the present.

I wish I knew exactly where they are intending to place their heavy batteries.

If I did, we should know where to strengthen our defenses and plant our counter-batteries.