Adam Badeau, Military history of Ulysses S. Grant from April 1861 to April 1865. Volume 1

The detachment sent to the right by Sherman soon discovered the weakness of the enemy; and their appearance caused the rebels to retire from that part of the line. Tuttle's troops at once advanced to the rear of the guns which had been playing on them in front, capturing ten pieces of artillery, together with all the gunners, a hundred and fifty in number; and the Fifteenth corps advanced into Jackson. At about the same time, McPherson also learned that the rebels had abandoned the place, and his troops moved forward inside the defences simultaneously with those of Sherman. Crocker captured seven guns, which the enemy in his haste had neither injured nor attempted to withdraw. By three o'clock, the two corps were in possession of Jackson. Crocker's troops raised the national flag over the capitol.

It was now apparent that McPherson had engaged the bulk of Johnston's command, without further aid than the moral support afforded by the enemy's knowledge of Sherman's presence on the south side of the works. Only a small infantry and artillery force had been stationed to impede Sherman's progress; but, as has been seen, it was impossible to ascertain the strength of the enemy, at this part of the line, in time to justify an immediate assault. When the troops in McPherson's front were driven in, those opposing Sherman of course retired; a few of the artillerists, however, remained in position till the last moment, evidently instructed to delay the advance as long as possible, and expecting, no doubt, to be captured in the end. It was these that Tuttle had taken prisoners. While this show of opposition was being made in Sherman's front, McPherson was