# Battle of Antietam order of battle: Union

The following Union Army units and commanders fought in the Battle of Antietam of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the army organization during the Maryland Campaign, the casualty returns and the reports.

## Abbreviations used
### Military rank

* MG = Major General
* BG = Brigadier General
* Col = Colonel
* Ltc = Lieutenant Colonel
* Maj = Major
* Cpt = Captain
* Lt = Lieutenant

### Other

* w = wounded
* mw = mortally wounded
* k = killed in action
* c = captured

## Army of the Potomac

MG George McClellan

### General Staff and Headquarters

General Staff
* Chief of Staff: BG Randolph B. Marcy
* Assistant Adjutant General: BG Seth Williams
* Inspector General: BG Delos B. Sackett
* Chief of Artillery: BG Henry J. Hunt
* Chief Quartermaster: Ltc Rufus Ingalls
General Headquarters
Escort: Cpt James B. McIntyre
* Independent Company Oneida (New York) Cavalry: Cpt Daniel P. Mann
* 4th United States Cavalry, Company A: Lt Thomas H. McCormick
* 4th United States Cavalry, Company E: Cpt James B. McIntyre
U.S. Engineer Battalion: Cpt James C. Duane
Provost Guard: Maj William H. Wood
* 2nd United States Cavalry, Companies E, F, H, and K: Cpt George A. Gordon
* 8th United States, Companies A, D, F, and G: Cpt Royal T. Frank
* 19th United States, Company G: Cpt Edmund L. Smith
* 19th United States, Company H: Cpt Henry S. Welton
Headquarters Guard: Maj Granville O. Haller
* 93rd New York: Ltc Benjamin C. Butler
Quartermaster's Guard:
* 1st United States Cavalry, Companies B, C, H, and I: Cpt Marcus A. Reno

### I Corps

MG Joseph Hooker (w)
BG George G. Meade
Escort:
* 2nd New York Cavalry, Companies A, B, I and K: Cpt John E. Naylor
| Division | Brigade | Regiments and Others |
| First Division   BG Abner Doubleday | 1st Brigade   Col Walter Phelps, Jr. | 22nd New York: Ltc John McKie, Jr. 24th New York: Cpt John D. O'Brian (w) 30th New York: Col William M. Searing 84th New York (14th Militia): Maj William H. de Bevoise 2nd United States Sharpshooters: Col Henry A. V. Post (w) |
| First Division   BG Abner Doubleday | 2nd Brigade   Ltc J. William Hofmann | 7th Indiana: Maj Ira G. Grover 76th New York: Cpt John W. Young 95th New York: Maj Edward Pye 56th Pennsylvania: Cpt Frederick Williams |
| First Division   BG Abner Doubleday | 3rd Brigade   BG Marsena R. Patrick | 21st New York: Col William F. Rogers 23rd New York: Col Henry C. Hoffman 35th New York: Col Newton B. Lord 80th New York (20th Militia): Ltc Theodore B. Gates |
| First Division   BG Abner Doubleday | 4th Brigade   BG John Gibbon | 19th Indiana: Ltc Alois O. Bachman (k), Cpt William W. Dudley 2nd Wisconsin: Ltc Thomas S. Allen (w), Cpt George B. Ely 6th Wisconsin: Ltc Edward S. Bragg (w), Maj Rufus R. Dawes 7th Wisconsin: Cpt John B. Callis |
| First Division   BG Abner Doubleday | Artillery   Cpt J. Albert Monroe | New Hampshire Light, 1st Battery: Lt Frederick M. Edgell 1st Rhode Island Light, Battery D: Cpt J. Albert Monroe 1st New York Light, Battery L: Cpt John A. Reynolds 4th United States, Battery B: Cpt Joseph B. Campbell (w), Lt James Stewart |
| Second Division   BG James B. Ricketts (w) | 1st Brigade   BG Abram Duryée | 97th New York: Maj Charles B. Northrup 104th New York: Maj Lewis C. Skinner 105th New York: Col Howard Carroll (mw), Cpt John C. Whiteside 107th Pennsylvania: Cpt James McThomson |
| Second Division   BG James B. Ricketts (w) | 2nd Brigade   Col William H. Christian   Col Peter Lyle | 26th New York: Ltc Richard H. Richardson 94th New York: Ltc Calvin Littlefield 88th Pennsylvania: Ltc George W. Gile (w), Cpt Henry B. Myers 90th Pennsylvania: Col Peter Lyle (w), Ltc William A. Leech |
| Second Division   BG James B. Ricketts (w) | 3rd Brigade   BG George L. Hartsuff (w)   Col Richard Coulter | 12th Massachusetts: Maj Elisha Burbank (mw), Cpt Benjamin F. Cook 13th Massachusetts: Maj J. Parker Gould 83rd New York (9th Militia): Ltc William Atterbury 11th Pennsylvania: Col Richard Coulter, Cpt David M. Cook |
| Second Division   BG James B. Ricketts (w) | Artillery | 1st Pennsylvania Light, Battery F: Cpt Ezra W. Matthews Pennsylvania Light, Battery C: Cpt James Thompson |
| Third Division   BG George G. Meade   BG Truman Seymour | 1st Brigade   BG Truman Seymour   Col Richard Biddle Roberts | 1st Pennsylvania Reserves: Col Richard Biddle Roberts, Cpt William C. Talley 2nd Pennsylvania Reserves: Cpt James N. Byrnes 5th Pennsylvania Reserves: Col Joseph W. Fisher 6th Pennsylvania Reserves: Col William Sinclair 13th Pennsylvania Reserves (1st Rifles): Cpt Dennis McGee |
| Third Division   BG George G. Meade   BG Truman Seymour | 2nd Brigade   Col Albert Magilton | 3rd Pennsylvania Reserves: Ltc John Clark 4th Pennsylvania Reserves: Maj John Nyce 7th Pennsylvania Reserves: Maj Chauncey A. Lyman 8th Pennsylvania Reserves: Maj Silas M. Bailey |
| Third Division   BG George G. Meade   BG Truman Seymour | 3rd Brigade   Ltc Robert Anderson | 9th Pennsylvania Reserves: Cpt Samuel B. Dick 10th Pennsylvania Reserves: Ltc Adoniram J. Warner (w), Cpt Jonathan P. Smith 11th Pennsylvania Reserves: Ltc Samuel M. Jackson 12th Pennsylvania Reserves: Cpt Richard Gustin |
| Third Division   BG George G. Meade   BG Truman Seymour | Artillery | 1st Pennsylvania Light, Battery A: Lt John G. Simpson 1st Pennsylvania Light, Battery B: Cpt James H. Cooper 5th United States, Battery C: Cpt Dunbar R. Ransom |

### II Corps

MG Edwin V. Sumner
Escort:
* 6th New York Cavalry, Company D: Cpt Henry W. Lyon
* 6th New York Cavalry, Company K: Cpt Riley Johnson
| Division | Brigade | Regiments and Others |
| First Division   MG Israel B. Richardson (mw)   BG John C. Caldwell   BG Winfield S. Hancock | 1st Brigade   BG John C. Caldwell | 5th New Hampshire: Col Edward E. Cross (w) 7th New York: Cpt Charles Brestel 61st and 64th New York: Col Francis C. Barlow (w), Ltc Nelson A. Miles 81st Pennsylvania: Maj H. Boyd McKeen |
| First Division   MG Israel B. Richardson (mw)   BG John C. Caldwell   BG Winfield S. Hancock | 2nd Brigade   BG Thomas F. Meagher (w)   Col John Burke | 29th Massachusetts: Ltc Joseph H. Barnes 63rd New York: Col John Burke, Ltc Henry Fowler (w), Maj Richard C. Bentley (w), Cpt Joseph O'Neill 69th New York: Ltc James Kelly (w), Maj James Cavanagh 88th New York: Ltc Patrick Kelly |
| First Division   MG Israel B. Richardson (mw)   BG John C. Caldwell   BG Winfield S. Hancock | 3rd Brigade   Col John R. Brooke | 2nd Delaware: Cpt David L. Stricker 52nd New York: Col Paul Frank 57th New York: Ltc Philip S. Parisen (k), Maj Alford B. Chapman 66th New York: Cpt Julius Wehle 53rd Pennsylvania: Ltc Richards McMichael |
| First Division   MG Israel B. Richardson (mw)   BG John C. Caldwell   BG Winfield S. Hancock | Artillery | 1st New York Light, Battery B: Cpt Rufus D. Pettit 4th United States, Battery A and C: Lt Evan Thomas |
| Second Division   MG John Sedgwick (w)   BG Oliver O. Howard | 1st Brigade   BG Willis A. Gorman | 15th Massachusetts: Ltc John W. Kimball 1st Minnesota: Col Alfred Sully 34th New York: Col James A. Suitor 82nd New York (2nd Militia): Col Henry W. Hudson Massachusetts Sharpshooters, 1st Company: Cpt John Saunders (k) Minnesota Sharpshooters, 2nd Company: Cpt William F. Russell |
| Second Division   MG John Sedgwick (w)   BG Oliver O. Howard | 2nd Brigade   BG Oliver O. Howard   Col Joshua T. Owen   Col DeWitt C. Baxter | 69th Pennsylvania: Col Joshua T. Owen 71st Pennsylvania: Col Isaac J. Wistar (w) 72nd Pennsylvania: Col DeWitt C. Baxter 106th Pennsylvania: Col Turner G. Morehead |
| Second Division   MG John Sedgwick (w)   BG Oliver O. Howard | 3rd Brigade   BG Napoleon J. T. Dana (w)   Col Norman J. Hall | 19th Massachusetts: Col Edward W. Hinks (w), Ltc Arthur F. Devereux (w), Cpt H. G. Weymouth 20th Massachusetts: Col William R. Lee 7th Michigan: Col Norman J. Hall, Cpt Charles J. Hunt 42nd New York: Ltc George N. Bomford (w), Maj James E. Mallon 59th New York: Col William L. Tidball |
| Second Division   MG John Sedgwick (w)   BG Oliver O. Howard | Artillery | 1st Rhode Island Light, Battery A: Cpt John A. Tompkins 1st United States, Battery I: Lt George A. Woodruff |
| Third Division   BG William H. French | 1st Brigade   BG Nathan Kimball | 14th Indiana: Col William Harrow 8th Ohio: Ltc Franklin Sawyer 132nd Pennsylvania: Col Richard A. Oakford (k), Ltc Vincent M. Wilcox 7th West Virginia: Col Joseph Snider |
| Third Division   BG William H. French | 2nd Brigade   Col Dwight Morris | 14th Connecticut: Ltc Sanford H. Perkins 108th New York: Col Oliver H. Palmer 130th Pennsylvania: Col Henry I. Zinn |
| Third Division   BG William H. French | 3rd Brigade   BG Max Weber (w)   Col John W. Andrews | 1st Delaware: Col John W. Andrews, Ltc Oliver Hopkinson (w) 5th Maryland: Maj Leopold Blumenberg (w), Cpt William W. Bamberger (w), Cpt Salome Marsh (w&c), Cpt Ernest F. M. Faehtz 4th New York: Ltc John D. MacGregor |
| | Unattached Artillery | 1st New York Light, Battery G: Cpt John D. Frank 1st Rhode Island Light, Battery B: Cpt John G. Hazard 1st Rhode Island Light, Battery G: Cpt Charles D. Owen |

### IV Corps

| Division | Brigade | Regiments and Others |
| First Division   MG Darius N. Couch | 1st Brigade   BG Charles Devens | 7th Massachusetts: Col David A. Russell 10th Massachusetts: Col Henry L. Eustis 36th New York: Col William H. Browne 2nd Rhode Island: Col Frank Wheaton |
| First Division   MG Darius N. Couch | 2nd Brigade   BG Albion P. Howe | 62nd New York: Col David J. Nevin 93rd Pennsylvania: Col James M. McCarter 98th Pennsylvania: Col John F. Ballier 102nd Pennsylvania: Col Thomas A. Rowley 139th Pennsylvania: Col Frank H. Collier |
| First Division   MG Darius N. Couch | 3rd Brigade   BG John Cochrane | 65th New York: Col Alexander Shaler 67th New York: Col Julius W. Adams 122nd New York: Col Silas Titus 23rd Pennsylvania: Col Thomas H. Neill 31st Pennsylvania: Col George C. Spear 61st Pennsylvania: Col David H. Williams |
| First Division   MG Darius N. Couch | Artillery | New York Light, 3rd Battery: Cpt William Stuart 1st Pennsylvania Light, Battery C: Cpt Jeremiah McCarthy 1st Pennsylvania Light, Battery D: Cpt Michael Hall 2nd United States, Battery G: Lt John H. Butler |

### V Corps

MG Fitz John Porter
Escort:
* 1st Maine Cavalry (detachment): Cpt George J. Summat
| Division | Brigade | Regiments and Others |
| First Division   MG George W. Morell | 1st Brigade   Col James Barnes | 2nd Maine: Col Charles W. Roberts 18th Massachusetts: Ltc Joseph Hayes 22nd Massachusetts: Ltc William S. Tilton 1st Michigan: Cpt Emory W. Belton 13th New York: Col Elisha Marshall 25th New York: Col Charles A. Johnson 118th Pennsylvania: Col Charles M. Prevost Massachusetts Sharpshooters, 2nd Company: Cpt Lewis E. Wentworth |
| First Division   MG George W. Morell | 2nd Brigade   BG Charles Griffin | 2nd District of Columbia: Col Charles M. Alexander 9th Massachusetts: Col Patrick R. Guiney 32nd Massachusetts: Col Francis J. Parker 4th Michigan: Col Jonathan W. Childs 14th New York: Col James McQuade 62nd Pennsylvania: Col Jacob B. Sweitzer |
| First Division   MG George W. Morell | 3rd Brigade   Col T.B.W. Stockton | 20th Maine: Col Adelbert Ames 16th Michigan: Ltc Norval E. Welch 12th New York: Cpt William Huson 17th New York: Ltc Nelson B. Bartram 44th New York: Maj Freeman Conner 83rd Pennsylvania: Cpt Orpheus S. Woodward Michigan Sharpshooters, Brady's Company: Lt Jonas H. Titus Jr. |
| First Division   MG George W. Morell | Artillery | Massachusetts Light, Battery C: Cpt Augustus P. Martin 1st Rhode Island Light, Battery C: Cpt Richard Waterman 5th United States, Battery D: Lt Charles E. Hazlett |
| First Division   MG George W. Morell | Sharpshooters | 1st United States: Cpt John B. Isler |
| Second Division   BG George Sykes | 1st Brigade   Ltc Robert C. Buchanan | 3rd United States: Cpt John D. Wilkins 4th United States: Cpt Hiram Dryer 12th United States, 1st Battalion: Cpt Matthew M. Blunt 12th United States, 2nd Battalion: Cpt Thomas M. Anderson 14th United States, 1st Battalion: Cpt W. Harvey Brown 14th United States, 2nd Battalion: Cpt David B. McKibbin |
| Second Division   BG George Sykes | 2nd Brigade   Maj Charles S. Lovell | 1st and 6th United States: Cpt Levi C. Bootes 2nd and 10th United States: Cpt John S. Poland 11th United States: Maj DeLancey Floyd-Jones 17th United States: Maj George L. Andrews |
| Second Division   BG George Sykes | 3rd Brigade   Col Gouverneur K. Warren | 5th New York: Cpt Cleveland Winslow 10th New York: Ltc John W. Marshall |
| Second Division   BG George Sykes | Artillery | 1st United States, Batteries E and G: Lt Alanson M. Randol 5th United States, Battery I: Cpt Stephen H. Weed 5th United States, Battery K: Lt William E. Van Reed |
| Third Division   BG Andrew A. Humphreys | 1st Brigade   BG Erastus B. Tyler | 91st Pennsylvania: Col Edgar M. Gregory 126th Pennsylvania: Col James G. Elder 129th Pennsylvania: Col Jacob G. Frick 134th Pennsylvania: Col Matthew S. Quay |
| Third Division   BG Andrew A. Humphreys | 2nd Brigade   Col Peter H. Allabach | 123rd Pennsylvania: Col John B. Clark 131st Pennsylvania: Ltc William B. Shaut 133rd Pennsylvania: Col Franklin B. Speakman 155th Pennsylvania: Col Edward J. Allen |
| Third Division   BG Andrew A. Humphreys | Artillery | 1st New York Light, Battery C: Cpt Almont Barnes 1st Ohio Light, Battery L: Cpt Lucius N. Robinson |
| | Artillery Reserve   Ltc William Hays | 1st Battalion New York Light, Battery A: Lt Bernhard Wever 1st Battalion New York Light, Battery B: Lt Alfred von Kleiser 1st Battalion New York Light, Battery C: Cpt Robert Langner 1st Battalion New York Light, Battery D: Cpt Charles Kusserow New York Light, 5th Battery: Cpt Elijah D. Taft 1st United States, Battery K: Cpt William M. Graham 4th United States, Battery G: Lt Marcus P. Miller |

### VI Corps

MG William B. Franklin
Escort:
* 6th Pennsylvania Cavalry, Companies B and G: Cpt Henry P. Muirheid
| Division | Brigade | Regiments and Others |
| First Division   MG Henry W. Slocum | 1st Brigade   Col Alfred T. A. Torbert | 1st New Jersey: Ltc Mark W. Collet 2nd New Jersey: Col Samuel L. Buck 3rd New Jersey: Col Henry W. Brown 4th New Jersey: Col William B. Hatch |
| First Division   MG Henry W. Slocum | 2nd Brigade   Col Joseph J. Bartlett | 5th Maine: Col Nathaniel J. Jackson 16th New York: Ltc Joel J. Seaver 27th New York: Ltc Alexander D. Adams 96th Pennsylvania: Col Henry L. Cake |
| First Division   MG Henry W. Slocum | 3rd Brigade   BG John Newton | 18th New York: Ltc George R. Myers 31st New York: Ltc Francis H. Pinto 32nd New York: Col Roderick Matheson 95th Pennsylvania: Col Gustavus W. Town |
| First Division   MG Henry W. Slocum | Artillery   Cpt Emory Upton | Maryland Light, Battery A: Cpt John W. Wolcott Massachusetts Light, Battery A: Cpt Josiah Porter New Jersey Light, Battery A: Cpt William Hexamer 2nd United States, Battery D: Lt Edward B. Williston |
| Second Division   MG William F. Smith | 1st Brigade   BG Winfield S. Hancock   Col Amasa Cobb | 6th Maine: Col Hiram Burnham 43rd New York: Maj John Wilson 49th Pennsylvania: Ltc William Brisbane 137th Pennsylvania: Col Henry M. Bossert 5th Wisconsin: Col Amasa Cobb |
| Second Division   MG William F. Smith | 2nd Brigade   BG William T. H. Brooks | 2nd Vermont: Maj James H. Walbridge 3rd Vermont: Col Breed N. Hyde 4th Vermont: Ltc Charles B. Stoughton 5th Vermont: Col Lewis A. Grant 6th Vermont: Maj Oscar L. Tuttle |
| Second Division   MG William F. Smith | 3rd Brigade   Col William H. Irwin | 7th Maine: Maj Thomas W. Hyde 20th New York: Col Ernst von Vegesack 33rd New York: Ltc Joseph W. Corning 49th New York: Ltc William C. Alberger (w), Maj George W. Johnson 77th New York: Cpt Nathan S. Babcock |
| Second Division   MG William F. Smith | Artillery   Cpt Romeyn B. Ayres | Maryland Light, Battery B: Lt Theodore J. Vanneman New York Light, 1st Battery: Cpt Andrew Cowan 5th United States, Battery F: Lt Leonard Martin |

### IX Corps

MG Ambrose Burnside
BG Jacob D. Cox
Escort:
* 1st Maine Cavalry, Company G: Cpt Zebulon B. Blethen
| Division | Brigade | Regiments and Others |
| First Division   BG Orlando B. Willcox | 1st Brigade   Col Benjamin C. Christ | 28th Massachusetts: Cpt Andrew P. Caraher 17th Michigan: Col William H. Withington 79th New York: Ltc David Morrison 50th Pennsylvania: Maj Edward Overton, Jr. (w), Cpt William H. Diehl |
| First Division   BG Orlando B. Willcox | 2nd Brigade   Col Thomas Welsh | 8th Michigan: Ltc Frank Graves, Maj Ralph Ely 46th New York: Ltc Joseph P. Gerhardt 45th Pennsylvania: Ltc John I. Curtin 100th Pennsylvania: Ltc David A. Leckey |
| First Division   BG Orlando B. Willcox | Artillery | Massachusetts Light, 8th Battery: Cpt Asa M. Cook 2nd U.S. Artillery, Battery E: Lt Samuel N. Benjamin |
| Second Division   BG Samuel D. Sturgis | 1st Brigade   BG James Nagle | 2nd Maryland: Ltc J. Eugene Duryée 6th New Hampshire: Col Simon G. Griffin 9th New Hampshire: Col Enoch Q. Fellows 48th Pennsylvania: Ltc Joshua K. Sigfried |
| Second Division   BG Samuel D. Sturgis | 2nd Brigade   BG Edward Ferrero | 21st Massachusetts: Col William S. Clark 35th Massachusetts: Ltc Sumner Carruth (w) 51st New York: Col Robert B. Potter 51st Pennsylvania: Col John F. Hartranft |
| Second Division   BG Samuel D. Sturgis | Artillery | Pennsylvania Light, Battery D: Cpt George W. Durell 4th U.S. Artillery, Battery E: Cpt Joseph C. Clark, Jr. (w) |
| Third Division   BG Isaac P. Rodman (mw)   Col Edward Harland   MG John G. Parke | 1st Brigade   Col Harrison S. Fairchild | 9th New York: Ltc Edgar A. Kimball 89th New York: Maj Edward Jardine 103rd New York: Maj Benjamin Ringold |
| Third Division   BG Isaac P. Rodman (mw)   Col Edward Harland   MG John G. Parke | 2nd Brigade   Col Edward Harland | 8th Connecticut: Ltc Hiram Appelman (w), Maj John H. Ward 11th Connecticut: Col Henry W. Kingsbury (mw) 16th Connecticut: Col Francis Beach 4th Rhode Island: Col William H. P. Steere (w), Ltc Joseph B. Curtis |
| Third Division   BG Isaac P. Rodman (mw)   Col Edward Harland   MG John G. Parke | Artillery | 5th United States, Battery A: Lt Charles P. Muhlenberg |
| Kanawha Division   Col Eliakim P. Scammon | 1st Brigade   Col Hugh B. Ewing | 12th Ohio: Col Carr B. White 23rd Ohio: Maj James M. Comly 30th Ohio: Ltc Theodore Jones (w&c), Maj George H. Hildt Ohio Light Artillery, 1st Battery: Cpt James R. McMullin Gilmore's Company, West Virginia Cavalry: Lt James Abraham Harrison's Company, West Virginia Cavalry: Lt Dennis Delaney |
| Kanawha Division   Col Eliakim P. Scammon | 2nd Brigade   Col George Crook | 11th Ohio: Ltc Augustus H. Coleman (k), Maj Lyman J. Jackson 28th Ohio: Ltc Gottfried Becker 36th Ohio: Ltc Melvin Clarke (k), Maj Ebenezer B. Andrews Schambeck's Company Chicago Dragoons: Cpt Frederick Schambeck Kentucky Light Artillery, Simmonds' Battery: Cpt Seth J. Simmonds |
| | Unattached troops | 6th New York Cavalry (8 companies): Col Thomas C. Devin Ohio Cavalry, 3rd Independent Company: Lt Jonas Seamen 3rd United States, Batteries L and M: Cpt John Edwards, Jr. 2nd New York, Battery L: Cpt Jacob Roemer |

### XII Corps

MG Joseph K. Mansfield (mw)
BG Alpheus S. Williams
Escort:
* 1st Michigan Cavalry, Company L: Cpt Melvin Brewer
| Division | Brigade | Regiments and Others |
| First Division   BG Alpheus S. Williams   BG Samuel W. Crawford (w)   BG George H. Gordon | 1st Brigade   BG Samuel W. Crawford   Col Joseph F. Knipe | 10th Maine: Col George L. Beal (w) 28th New York: Cpt William H. H. Mapes 46th Pennsylvania: Col Joseph F. Knipe, Ltc James L. Selfridge 124th Pennsylvania: Col Joseph W. Hawley (w), Maj Isaac L. Haldeman 125th Pennsylvania: Col Jacob C. Higgins 128th Pennsylvania: Col Samuel Croasdale (k), Ltc William W. Hammersly (w), Maj Joel B. Wanner |
| First Division   BG Alpheus S. Williams   BG Samuel W. Crawford (w)   BG George H. Gordon | 3rd Brigade   BG George H. Gordon   Col Thomas H. Ruger (w) | 27th Indiana: Col Silas Colgrove 2nd Massachusetts: Col George L. Andrews 13th New Jersey: Col Ezra A. Carman 107th New York: Col Robert B. Van Valkenburg Pennsylvania Zouaves d'Afrique 3rd Wisconsin: Col Thomas H. Ruger |
| Second Division   BG George S. Greene | 1st Brigade   Ltc Hector Tyndale (w)   Maj Orrin J. Crane | 5th Ohio: Maj John Collins 7th Ohio: Maj Orrin J. Crane, Cpt Frederick A. Seymour 66th Ohio: Ltc Eugene Powell (w) 28th Pennsylvania: Maj Ario Pardee, Jr. |
| Second Division   BG George S. Greene | 2nd Brigade   Col Henry J. Stainrook | 3rd Maryland: Ltc Joseph H. Sudsburg 102nd New York: Ltc James C. Lane 111th Pennsylvania: Maj Thomas M. Walker (w) |
| Second Division   BG George S. Greene | 3rd Brigade   Col William B. Goodrich (mw)   Ltc Jonathan Austin | 3rd Delaware: Maj Arthur Maginnis (w), Cpt William J. McKaig Purnell (Maryland) Legion: Ltc Benjamin L. Simpson 60th New York: Ltc Charles R. Brundage 78th New York: Ltc Jonathan Austin, Cpt Henry R. Stagg |
| | Artillery   Cpt Clermont L. Best | Maine Light, 4th Battery: Cpt O'Neill W. Robinson, Jr. Maine Light, 6th Battery: Cpt Freeman McGilvery 1st New York Light, Battery M: Cpt George W. Cothran New York Light, 10th Battery: Cpt John T. Bruen Pennsylvania Light, Battery E: Cpt Joseph M. Knap Pennsylvania Light, Battery F: Cpt Robert B. Hampton 4th United States, Battery F: Lt Edward D. Muhlenberg |

### Cavalry

| Division | Brigade | Regiments and Others |
| Cavalry Division   BG Alfred Pleasonton | 1st Brigade   Maj Charles J. Whiting | 5th United States: Cpt Joseph H. McArthur 6th United States: Cpt William P. Sanders |
| Cavalry Division   BG Alfred Pleasonton | 2nd Brigade   Col John F. Farnsworth | 8th Illinois: Maj. William H. Medill 3rd Indiana: Maj George H. Chapman 1st Massachusetts: Cpt Caspar Crowninshield 8th Pennsylvania: Cpt Peter Keenan |
| Cavalry Division   BG Alfred Pleasonton | 3rd Brigade   Col Richard H. Rush | 4th Pennsylvania: Col James H. Childs (k), Ltc James K. Kerr 6th Pennsylvania: Ltc C. Ross Smith |
| Cavalry Division   BG Alfred Pleasonton | 4th Brigade   Col Andrew T. McReynolds | 1st New York: Maj Alonzo W. Adams 12th Pennsylvania: Maj James A. Congdon |
| Cavalry Division   BG Alfred Pleasonton | 5th Brigade   Col Benjamin F. Davis | 8th New York: Col Benjamin F. Davis 3rd Pennsylvania: Ltc Samuel W. Owen |
| Cavalry Division   BG Alfred Pleasonton | Horse Artillery | 2nd United States, Battery A: Cpt John C. Tidball 2nd United States, Batteries B and L: Cpt James M. Robertson 2nd United States, Battery M: Lt Peter C. Hains 3rd United States, Batteries C and G: Cpt Horatio G. Gibson |
| Cavalry Division   BG Alfred Pleasonton | Unattached | 15th Pennsylvania (detachment): Col William J. Palmer |