Knap; Pa. Light, Batt. F, Capt. Robert B. Hampton; 4th U. S., Batt. F, Lieut. Edward D. Muhlenberg.
Cavalry Division, Brig.-Gen. Alfred Pleasonton :--First Brigade, Maj. Charles J. Whiting; 5th U. S., Capt. Joseph H. McArthur; 6th U. S., Capt. William P. Sanders. Second Brigade, Col. John F. Farnsworth; 8th Ill., Maj. William H. Medill; 3d Ind., Maj. George H. Chapman; 1st Mass., Capt. Casper Crowninshield; 8th Pa., Capt. Peter Keenan. Third Brigade, Col. Richard H. Rush; 4th Pa., Col. James H. Childs, Lieut.-Col. James K. Kerr; 6th Pa., Lieut.-Col. C. Ross Smith. Fourth Brigade, Col. Andrew T. McReynolds; 1st N. Y., Maj. Alonzo W. Adams; 12th Pa., Major James A. Congdon. Fifth Brigade, Col. Benj. F. Davis; 8th N. Y., Col. Benjamin F. Davis; 3d Pa., Lieut.-Col. Samuel W. Owen. Artillery, 2d U. S., Batt. A, Capt. John C. Tidball; 2d U. S., Batts.
B and L, Capt. James M. Robertson; 2d U. S., Batt. M. Lieut. Peter C. Hains; 3d U. S., Batts.
C and G, Capt. Horatio G. Gibson. Unattach