| Brigades
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Regiments and batteries
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| 1st Brigade (2989 officers & men) (24 KIA, 121 WIA, 1214 MIA = 1359 total casualties)
BG Washington Lafayette Elliott
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- 110th Ohio (569 officers & men) (4 KIA, 51 WIA, 210 MIA = 265 total casualties): Col J. Warren Keifer, Ltc William N. Foster
- 116th Ohio (619 officers & men) (8 KIA, 29 WIA, 141 MIA = 178 total casualties): Col James Washburn, Ltc Thomas F. Wildes
- 122nd Ohio (810 officers & men) ( KIA, MW, WIA, MIA = 413 total casualties): Col William H. Ball, Ltc Moses M. Granger
- 12th Pennsylvania Cavalry (620 officers & men) (4 KIA, 12 WIA, 156 MIA = 172 total casualties): Col Lewis B. Pierce
- 13th Pennsylvania Cavalry (655 officers & men) (1 WIA, 247 MIA = 248 total casualties): Col James A. Gallagher
- 1st West Virginia Artillery, Battery D (95 officers & men; 6x 3-inch Ordnance Rifles) ( 3 WIA, 80 MIA = 83 total casualties): Cpt John Carlin
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| 2nd Brigade (3305 officers & men) (52 KIA, 173 WIA, 1752 MIA = 1977 total casualties)
Col William G. Ely (c)
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- 18th Connecticut (820 officers & men) (18 KIA, 46 WIA, 534 MIA = 598 total casualties): Ltc Monroe Nichols (c); Maj Henry Peale
- 5th Maryland (est. 645 officers & men) (5 WIA, 315 MIA = 320 total casualties): Col William Louis Schley, Maj Salome Marsh
- 123rd Ohio (est. 720 officers & men) (21 KIA, 62 WIA, 466 MIA = 549 total casualties): Col William T. Wilson (c); Ltc Henry B. Hunter (w&c); Maj Horace Kellogg (w); Capt. Frederick K. Shawhan
- 87th Pennsylvania (est. 750 officers & men) (11 KIA, 21 WIA, 293 MIA = 325 total casualties): Col John W. Schall
- 12th West Virginia (est. 440 officers & men) (6 KIA, 36 WIA, 191 MIA = 233 total casualties): Col John B. Klunk
- 1st West Virginia Cavalry, Company K (65 officers & men) (1 WIA, 11 MIA = 12 total casualties): Cpt Weston Rowand
- 3rd West Virginia Cavalry, Companies D and E (125 officers & men) (1 WIA, 71 MIA = 72 total casualties): Cpt James R. Utt
- 5th U.S. Artillery, Battery L (90 officers & men; 6x 3-inch Ordnance Rifles) (3 KIA, 1 WIA, 77 MIA = 81 total casualties): Lt Wallace F. Randolph (w&c); Lt Edmund Dana Spooner
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| 3rd Brigade (1925 officers & men) (20 KIA, 3 MW, 52 WIA, 993 MIA = 1068 total casualties)
Col Andrew T. McReynolds
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- 6th Maryland (580 officers & men) (1 KIA, 6 WIA, 167 MIA = 174 total casualties): Col John W. Horn
- 67th Pennsylvania (830 officers & men) (17 KIA, 38 WIA, 736 MIA = 791 total casualties): Col John F. Staunton, Ltc Horace B. Burnham
- 106th New York Infantry (detached at Martinsburg)
- 1st New York Cavalry (420 officers & men) (3 KIA, 3 MW, 3 WIA, 56 MIA = 64 total casualties): Maj Alonzo W. Adams
- Baltimore Battery, Maryland Light Artillery (123 officers & men; 6x 3-inch Ordnance Rifles) (5 WIA, 34 MIA = 39 total casualties): Cpt F. W. Alexander
- 1st Massachusetts Heavy Artillery, Company I (105 officers & men; 4x 20-pounder Parrott Rifles; 2x 24-pounder Howitzers) (3 WIA, 45 MIA = 48 total casualties): Capt William F. Martins (c); Lt. Jonathan B. Hanson
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