...t I saw nothing of his corps at all, as I was advancing with my command on the field. There were some troops lying down on the left which I took to belong to Mansfield's command. In the meantime, General Mansfield had been killed, and a portion of his corps (formerly Banks') had also been thrown into confusion. Sedgwick, of Sumner, was in the lead, and his three brigades moved toward the Dunker church and le...