Sheridan, after he had returned to Five Forks, swept down to Petersburg, coming in on our left.  This gave us a continuous line from the Appomattox River below the city to the same river above.  At eleven o’clock, not having heard from Sheridan, I reinforced Parke with two brigades from City Point.  With this additional force he completed his captured works for better defence, and built back from his right, so as to protect his flank.  He also carried in and made an abatis between himself and the enemy.  Lee brought additional troops and artillery against Parke even after this was done, and made several assaults with very heavy losses.

The enemy had in addition to their intrenched line close up to Petersburg, two enclosed works outside of it, Fort Gregg and Fort Whitworth.  We thought it had now become necessary to carry them by assault.  About one o’clock in the day, Fort Gregg was assaulted by Foster’s division of the 24th corps (Gibbon’s), supported by two brigades from Ord’s command.  The battle was desperate and the National troops were repulsed several times; but it was finally carried, and immediately the troops in Fort Whitworth evacuated the place.  The guns of Fort Gregg were turned upon the retreating enemy, and the commanding officer with some sixty of the men of Fort Whitworth surrendered.

I had ordered Miles in the morning to report to Sheridan.  In moving to execute this order he came upon the enemy at the intersection of the White Oak Road and the Claiborne Road.  The enemy fell back to Sutherland Station on the South Side Road and were followed by Miles.  This position, naturally a strong and defensible one, was also strongly intrenched.  Sheridan now came up and Miles asked permission from him to make the assault, which Sheridan gave.  By this time Humphreys had got through the outer works in his front, and came up also and assumed command over Miles, who commanded a division in his corps.  I had sent an order to Humphreys to turn to his right and move towards Petersburg.  This order he now got, and started off, thus leaving Miles alone.  The latter made two assaults, both of which failed, and he had to fall back a few hundred yards.

Hearing that Miles had been left in this position, I directed Humphreys to send a division back to his relief.  He went himself.

Sheridan before starting to sweep down to Petersburg had sent Merritt with his cavalry to the west to attack some Confederate cavalry that had assembled there.  Merritt drove them north to the Appomattox River.  Sheridan then took the enemy at Sutherland Station on the reverse side from where Miles was, and the two together captured the place, with a large number of prisoners and some pieces of artillery, and put the remainder, portions of three Confederate corps, to flight.  Sheridan followed, and drove them until night, when further pursuit was stopped.  Miles bivouacked for the night on the ground which he with Sheridan had carried so handsomely by assault.  I cannot explain the situation here better than by giving my dispatch to City Point that evening: