Spotsylvania Court House Union order of battle

The following Union Army units and commanders fought in the Battle of Spotsylvania Court House (May 8–21, 1864) of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the casualty returns^[1] and the reports.^[2][3]

Abbreviations used

Military rank

• LTG = Lieutenant General
• MG = Major General
• BG = Brigadier General
• Col = Colonel
• Ltc = Lieutenant Colonel
• Maj = Major
• Cpt = Captain

Other

• w = wounded
• k = killed
• c = captured

Forces operating against Richmond May 8–16, 1864

LTG Ulysses S. Grant, General-in-Chief, Union armies

Escort:

• 5th United States Cavalry, Companies B, F and K

IX Corps

MG Ambrose E. Burnside^[4]

• Chief of Staff: MG John G. Parke

Division	Brigade	Regiments and Others
First Division      BG Thomas G. Stevenson (k)      Col Daniel Leasure      MG Thomas L. Crittenden[5]	1st Brigade    Col Jacob P. Gould[6]    Ltc Stephen M. Weld, Jr.    BG James Ledlie[7]	35th Massachusetts 56th Massachusetts: Ltc Stephen M. Weld, Jr. 57th Massachusetts 59th Massachusetts 4th United States 10th United States
	2nd Brigade    Col Daniel Leasure[8]    Ltc Gilbert P. Robinson	3rd Maryland: Ltc Gilbert P. Robinson 21st Massachusetts 100th Pennsylvania
	Artillery	Maine Light, 2nd Battery (B) Massachusetts Light, 14th Battery
Second Division      BG Robert B. Potter	1st Brigade    Col Zenas Bliss[9]    Col John I. Curtin	36th Massachusetts 58th Massachusetts 51st New York 45th Pennsylvania: Col John I. Curtin 48th Pennsylvania 7th Rhode Island
	2nd Brigade    Col Simon G. Griffin	2nd Maryland (detachment) 31st Maine 32nd Maine 6th New Hampshire 9th New Hampshire 11th New Hampshire 17th Vermont
	Artillery	Massachusetts Light, 11th Battery New York Light, 19th Battery
Third Division      BG Orlando B. Wilcox	1st Brigade    Col John F. Hartranft	2nd Michigan: Col William Humphrey 8th Michigan 17th Michigan 27th Michigan[10] 109th New York 51st Pennsylvania
	2nd Brigade    Col Benjamin C. Christ[11]    Col William Humphrey[5]	1st Michigan Sharpshooters 20th Michigan 79th New York[12] 60th Ohio[13] 50th Pennsylvania
	Artillery	Maine Light, 7th Battery (G) New York Light, 34th Battery
Fourth Division[14]      BG Edward Ferrero	1st Brigade    Col Joshua K. Sigfried	27th United States Colored Troops 30th United States Colored Troops 39th United States Colored Troops 43rd United States Colored Troops
	2nd Brigade    Col Henry G. Thomas	30th Connecticut Colored (detachment) 19th United States Colored Troops 23rd United States Colored Troops
	Artillery	Pennsylvania Light, Battery D Vermont Light, 3rd Battery
Reporting directly	Provost Guard	8th United States
	Cavalry	3rd New Jersey 22nd New York 2nd Ohio 13th Pennsylvania
	Artillery Reserve[15]    Cpt John Edwards, Jr.	New York Light, 27th Battery 1st Rhode Island Light, Battery D 1st Rhode Island Light, Battery H 2nd United States, Battery E 3rd United States, Battery G 3rd United States, Batteries L and M
	Provisional Brigade[16]    Col Elisha G. Marshall	2nd New York Mounted Rifles (dismounted)[17] 14th New York Heavy Artillery 24th New York Cavalry (dismounted) 2nd Pennsylvania Provisional Heavy Artillery

Army of the Potomac

MG George G. Meade

General Staff:

• Chief of Staff: MG Andrew A. Humphreys
• Assistant Adjutant General: BG Seth Williams
• Chief Quartermaster: BG Rufus Ingalls

General Headquarters:

Provost Guard: BG Marsena R. Patrick

• 1st Massachusetts Cavalry, Companies C and D
• 80th New York (20th Militia)
• 3rd Pennsylvania Cavalry
• 68th Pennsylvania
• 114th Pennsylvania

Engineer Troops:

• 50th New York Engineers
• Battalion United States Engineers

Guards and Orderlies:

• Independent Company Oneida (New York) Cavalry

II Corps

MG Winfield S. Hancock

Escort:

• 1st Vermont Cavalry, Company M

Division	Brigade	Regiments and Others
First Division      BG Francis C. Barlow	1st Brigade    Col Nelson A. Miles	26th Michigan 61st New York 81st Pennsylvania: Col H. Boyd McKeen 140th Pennsylvania 183rd Pennsylvania
	2nd Brigade    Col Thomas A. Smyth	28th Massachusetts 63rd New York 69th New York 88th New York 116th Pennsylvania
	3rd Brigade[18]    Col Paul Frank[19]    Col Hiram L. Brown (c)[20]    Col Clinton D. MacDougall	39th New York 52nd New York[21] 111th New York: Col Clinton D. MacDougall 125th New York 126th New York
	4th Brigade    Col John R. Brooke	2nd Delaware 64th New York 66th New York 53rd Pennsylvania 145th Pennsylvania: Col Hiram L. Brown 148th Pennsylvania
Second Division      BG John Gibbon	1st Brigade    BG Alexander S. Webb (w)    Col H. Boyd McKeen	19th Maine 15th Massachusetts 19th Massachusetts 20th Massachusetts 1st Company Massachusetts Sharpshooters 7th Michigan 42nd New York 59th New York 82nd New York (2nd Militia)
	2nd Brigade    BG Joshua T. Owen	152nd New York 69th Pennsylvania 71st Pennsylvania 72nd Pennsylvania 106th Pennsylvania
	3rd Brigade    Col Samuel S. Carroll (w)    Col Theodore G. Ellis	14th Connecticut: Col Theodore G. Ellis 1st Delaware 14th Indiana 12th New Jersey 10th New York Battalion 108th New York 4th Ohio 8th Ohio 7th West Virginia
	Provost Guard	2nd Company Minnesota Sharpshooters
Third Division      BG David B. Birney	1st Brigade    BG J. H. Hobart Ward[22]    Col Thomas W. Egan	20th Indiana 3rd Maine 40th New York: Col Thomas W. Egan 86th New York 124th New York 99th Pennsylvania 110th Pennsylvania 141st Pennsylvania 2nd United States Sharpshooters
	2nd Brigade    Col John S. Crocker	4th Maine 17th Maine 3rd Michigan 5th Michigan 93rd New York 57th Pennsylvania 63rd Pennsylvania: Col William S. Kirkwood (mw), Cpt James F. Ryan 105th Pennsylvania 1st United States Sharpshooters
Fourth Division[23]      BG Gershom Mott	1st Brigade    Col Robert McAllister	1st Massachusetts 16th Massachusetts 5th New Jersey 6th New Jersey 7th New Jersey 8th New Jersey 11th New Jersey: Col Robert McAllister 26th Pennsylvania 115th Pennsylvania
	2nd Brigade    Col William R. Brewster	11th Massachusetts 70th New York 71st New York 72nd New York 73rd New York 74th New York 120th New York 84th Pennsylvania
	Artillery Brigade    Col John C. Tidball	Maine Light, 6th Battery (F) Massachusetts Light, 10th Battery New Hampshire Light, 1st Battery 1st New York Light, Battery G 4th New York Heavy, 3rd Battalion 1st Pennsylvania Light, Battery F 1st Rhode Island Light, Battery A 1st Rhode Island Light, Battery B 4th United States, Battery K 5th United States, Batteries C and I

V Corps

MG Gouverneur K. Warren

Provost Guard:

• 12th New York Battalion

Division	Brigade	Regiments and Others
First Division      BG Charles Griffin	1st Brigade    BG Romeyn B. Ayres	140th New York 146th New York 91st Pennsylvania 155th Pennsylvania 2nd United States, Companies B, C, F, H, I, and K 11th United States, Companies B, C, D, E, F, and G, 1st Battalion 12th United States, Companies A, B, C, D, and G, 1st Battalion, and Companies A, C, D, F, and H, 2nd Battalion 14th United States, 1st Battalion 17th United States, Companies A, C, D, G, and H, 1st Battalion, and Companies A, B, and C, 2nd Battalion
	2nd Brigade    Col Jacob B. Sweitzer	9th Massachusetts 22nd Massachusetts[24] 32nd Massachusetts 4th Michigan 62nd Pennsylvania
	3rd Brigade    BG Joseph J. Bartlett	20th Maine 18th Massachusetts 1st Michigan 16th Michigan[25] 44th New York 83rd Pennsylvania 118th Pennsylvania
Second Division[26]      BG John C. Robinson (w)      Col Richard Coulter	1st Brigade    Col Peter Lyle	16th Maine 13th Massachusetts 39th Massachusetts 104th New York 90th Pennsylvania 107th Pennsylvania[27]
	2nd Brigade    Col Richard Coulter[28]    Col James L. Bates	12th Massachusetts: Col James L. Bates 83rd New York (9th Militia) 97th New York 11th Pennsylvania 88th Pennsylvania
	3rd Brigade    Col Andrew W. Denison (w)    Col Charles E. Phelps (c)    Col Richard N. Bowerman	1st Maryland 4th Maryland: Col Richard N. Bowerman 7th Maryland: Col Charles E. Phelps 8th Maryland
Third Division      BG Samuel W. Crawford	1st Brigade    Col William McCandless (w)    Col William C. Talley (c)    Col Wellington H. Ent    Col Samuel M. Jackson	1st Pennsylvania Reserves: Col William C. Talley 2nd Pennsylvania Reserves 6th Pennsylvania Reserves: Col Wellington H. Ent 7th Pennsylvania Reserves 11th Pennsylvania Reserves: Col Samuel M. Jackson 13th Pennsylvania Reserves (1st Rifles)
	3rd Brigade    Col Joseph W. Fisher	5th Pennsylvania Reserves 8th Pennsylvania Reserves[29] 10th Pennsylvania Reserves 12th Pennsylvania Reserves
Fourth Division      BG Lysander Cutler	1st Brigade    Col William W. Robinson	7th Indiana 19th Indiana 24th Michigan 1st New York Battalion Sharpshooters 2nd Wisconsin[30] 6th Wisconsin 7th Wisconsin
	2nd Brigade    BG James C. Rice (k)    Col Edward B. Fowler	76th New York 84th New York (14th Militia): Col Edward B. Fowler 95th New York 147th New York 56th Pennsylvania
	3rd Brigade    Col Edward S. Bragg	121st Pennsylvania 142nd Pennsylvania 143rd Pennsylvania 149th Pennsylvania 150th Pennsylvania
	Artillery Brigade    Col Charles S. Wainwright	Massachusetts Light, Battery C Massachusetts Light, Battery E 1st New York Light, Battery D 1st New York Light, Batteries E and L 1st New York Light, Battery H 4th New York Heavy, 2nd Battalion 1st Pennsylvania Light, Battery B 4th United States, Battery B 5th United States, Battery D

VI Corps

MG John Sedgwick (k)
BG Horatio G. Wright
Escort:

• 8th Pennsylvania Cavalry, Company A

Division	Brigade	Regiments and Others
First Division      BG Horatio G. Wright      BG David A. Russell	1st Brigade    Col Henry W. Brown    Col William H. Penrose	1st New Jersey 2nd New Jersey: Ltc Charles Wiebecke (k) 3rd New Jersey 4th New Jersey 10th New Jersey 15th New Jersey
	2nd Brigade    Col Emory Upton (w)	5th Maine 121st New York 95th Pennsylvania Infantry 96th Pennsylvania
	3rd Brigade    BG David A. Russell    BG Henry L. Eustis	6th Maine 49th Pennsylvania 119th Pennsylvania 5th Wisconsin
	4th Brigade    Col Nelson Cross	65th New York 67th New York 122nd New York 82nd Pennsylvania (detachment)
Second Division      BG Thomas H. Neill	1st Brigade    BG Frank Wheaton	62nd New York 93rd Pennsylvania 98th Pennsylvania 102nd Pennsylvania 139th Pennsylvania
	2nd Brigade    Col Lewis A. Grant	1st Vermont Heavy Artillery[31] 2nd Vermont 3rd Vermont 4th Vermont 5th Vermont 6th Vermont
	3rd Brigade    Col Daniel D. Bidwell	7th Maine 43rd New York 49th New York: Ltc George W. Johnson 77th New York 61st Pennsylvania
	4th Brigade    BG Henry L. Eustis    Col Oliver Edwards	7th Massachusetts 10th Massachusetts 37th Massachusetts: Col Oliver Edwards 2nd Rhode Island
Third Division      BG James B. Ricketts	1st Brigade    BG William H. Morris (w)    Col John W. Schall    Col William S. Truex[32]	14th New Jersey 106th New York 151st New York 87th Pennsylvania: Col John W. Schall 10th Vermont
	2nd Brigade    Col Benjamin F. Smith	6th Maryland 110th Ohio 122nd Ohio 126th Ohio 67th Pennsylvania 138th Pennsylvania
	Artillery Brigade    Col Charles H. Tompkins	Maine Light, 4th Battery (D) Massachusetts Light, 1st Battery (A) New York Light, 1st Battery New York Light, 3rd Battery 4th New York Heavy, 1st Battalion 1st Rhode Island Light, Battery C 1st Rhode Island Light, Battery E 1st Rhode Island Light, Battery G 5th United States, Battery M

Cavalry Corps

MG Philip H. Sheridan^[33]

Escort:

• 6th United States

Division	Brigade	Regiments and Others
First Division      BG Wesley Merritt	1st Brigade    BG George A. Custer	1st Michigan 5th Michigan 6th Michigan 7th Michigan
	2nd Brigade    Col Thomas C. Devin	4th New York 6th New York 9th New York 17th Pennsylvania
	Reserve Brigade    Col Alfred Gibbs	19th New York 6th Pennsylvania 1st United States 2nd United States 5th United States
Second Division      BG David M. Gregg	1st Brigade    BG Henry E. Davies, Jr.	1st Massachusetts 1st New Jersey 6th Ohio 1st Pennsylvania
	2nd Brigade    Col J. Irvin Gregg	1st Maine 10th New York 2nd Pennsylvania 4th Pennsylvania 8th Pennsylvania 16th Pennsylvania
Third Division      BG James H. Wilson	1st Brigade    Col John B. McIntosh	1st Connecticut 2nd New York 5th New York[34] 18th Pennsylvania
	2nd Brigade    Col George H. Chapman	3rd Indiana 8th New York 1st Vermont
	1st Brigade Horse Artillery    Cpt James M. Robertson	New York Light, 6th Battery 2nd United States, Batteries B and L 2nd United States, Battery D 2nd United States, Battery M 4th United States, Battery A 4th United States, Batteries C and E

Artillery

BG Henry J. Hunt^[35][36]

Division	Brigade	Regiments and Others
Artillery Reserve[37]      Col Henry S. Burton	1st Brigade[38]    Col J. Howard Kitching	6th New York Heavy 15th New York Heavy, 1st and 3rd Battalions
	2nd Brigade    Maj John A. Tompkins	Maine Light, 5th Battery (E) 1st New Jersey Light, Battery A 1st New Jersey Light, Battery B New York Light, 5th Battery New York Light, 12th Battery 1st New York Light, Battery B
	3rd Brigade    Maj Robert H. Fitzhugh	Massachusetts Light, 9th Battery New York Light, 15th Battery 1st New York Light, Battery C New York Light, 11th Battery 1st Ohio Light, Battery H 5th United States, Battery E
	2nd Brigade Horse Artillery    Cpt Dunbar R. Ransom	1st United States, Batteries E and G 1st United States, Batteries H and I 1st United States, Battery K 2nd United States, Battery A 2nd United States, Battery G 3rd United States, Batteries C, F, and K
	Artillery Park    Ltc Freeman McGilvery	15th New York Heavy, 2nd Battalion

Forces operating against Richmond May 17–21, 1864

LTG Ulysses S. Grant, General-in-Chief, Union armies

Escort:

• 5th United States Cavalry, Companies B, F and K

IX Corps

MG Ambrose E. Burnside^[4]

• Chief of Staff: MG John G. Parke

Division	Brigade	Regiments and Others
First Division      MG Thomas L. Crittenden	1st Brigade    BG James Ledlie	35th Massachusetts 56th Massachusetts: Ltc Stephen M. Weld, Jr. 57th Massachusetts 59th Massachusetts 4th United States 10th United States
	2nd Brigade    Ltc Gilbert P. Robinson	3rd Maryland 21st Massachusetts 100th Pennsylvania
	Provisional Brigade    Col Elisha G. Marshall	2nd New York Mounted Rifles (dismounted) 14th New York Heavy Artillery 24th New York Cavalry (dismounted) 2nd Pennsylvania Provisional Heavy Artillery
	Artillery	Maine Light, 2nd Battery (B) Massachusetts Light, 14th Battery
Second Division      BG Robert B. Potter	1st Brigade    Col John I. Curtin	36th Massachusetts 58th Massachusetts 51st New York 45th Pennsylvania 48th Pennsylvania 7th Rhode Island
	2nd Brigade    Col Simon G. Griffin	2nd Maryland (detachment) 31st Maine 32nd Maine 6th New Hampshire 9th New Hampshire 11th New Hampshire 17th Vermont
	Artillery	Massachusetts Light, 11th Battery New York Light, 19th Battery
Third Division      BG Orlando B. Wilcox	1st Brigade    Col John F. Hartranft	2nd Michigan 8th Michigan 17th Michigan 27th Michigan[10] 109th New York 51st Pennsylvania
	2nd Brigade    Col William Humphrey	1st Michigan Sharpshooters 20th Michigan 60th Ohio[13] 50th Pennsylvania
	Artillery	Maine Light, 7th Battery (G) New York Light, 34th Battery
Fourth Division[14]      BG Edward Ferrero	1st Brigade    Col Joshua K. Sigfried	27th United States Colored Troops 30th United States Colored Troops 39th United States Colored Troops 43rd United States Colored Troops
	2nd Brigade    Col Henry G. Thomas	30th Connecticut Colored (detachment) 19th United States Colored Troops 23rd United States Colored Troops
	Artillery	Pennsylvania Light, Battery D Vermont Light, 3rd Battery
Reporting directly	Provost Guard	8th United States
	Cavalry	3rd New Jersey 22nd New York 2nd Ohio

Army of the Potomac

MG George G. Meade

General Staff:

• Chief of Staff: MG Andrew A. Humphreys
• Assistant Adjutant General: BG Seth Williams
• Chief Quartermaster: BG Rufus Ingalls

General Headquarters:

Provost Guard: BG Marsena R. Patrick

• 1st Massachusetts Cavalry, Companies C and D
• 80th New York (20th Militia)
• 3rd Pennsylvania Cavalry
• 68th Pennsylvania
• 114th Pennsylvania

Engineer Troops:

• 50th New York Engineers
• Battalion United States Engineers

Guards and Orderlies:

• Independent Company Oneida (New York) Cavalry

II Corps

MG Winfield S. Hancock

Escort:

• 1st Vermont Cavalry, Company M

Division	Brigade	Regiments and Others
First Division      BG Francis C. Barlow	1st Brigade    Col Nelson A. Miles	26th Michigan 61st New York 81st Pennsylvania 140th Pennsylvania 183rd Pennsylvania
	2nd Brigade    Col Thomas A. Smyth[39]    Col Richard Byrnes	28th Massachusetts: Col Richard Byrnes 63rd New York 69th New York 88th New York 116th Pennsylvania
	3rd Brigade[18]    Col Clinton D. MacDougall	39th New York 52nd New York[21] 111th New York 125th New York 126th New York
	4th Brigade    Col John R. Brooke	2nd Delaware 64th New York 66th New York 53rd Pennsylvania 145th Pennsylvania 148th Pennsylvania
Second Division      BG John Gibbon	1st Brigade    Col H. Boyd McKeen	19th Maine 15th Massachusetts 19th Massachusetts 20th Massachusetts 1st Company Massachusetts Sharpshooters 7th Michigan 42nd New York 59th New York 82nd New York (2nd Militia) 36th Wisconsin[40]
	2nd Brigade    BG Joshua T. Owen	152nd New York 69th Pennsylvania 71st Pennsylvania 72nd Pennsylvania 106th Pennsylvania
	3rd Brigade    Col Theodore G. Ellis    Col Thomas A. Smyth[39]	14th Connecticut: Col Theodore G. Ellis 1st Delaware 14th Indiana 12th New Jersey 10th New York Battalion 108th New York 4th Ohio 8th Ohio 7th West Virginia
	4th Brigade[41]    Col Mathew Murphy (w)    Col James P. McIvor	155th New York 164th New York 170th New York: Col James P. McIvor 182nd New York
	Provost Guard	2nd Company Minnesota Sharpshooters
Third Division      BG David B. Birney	1st Brigade    Col Thomas W. Egan	20th Indiana 3rd Maine 40th New York 86th New York 124th New York 99th Pennsylvania 110th Pennsylvania 141st Pennsylvania 2nd United States Sharpshooters
	2nd Brigade    Col John S. Crocker    Col Elijah Walker[42]	4th Maine: Col Elijah Walker 17th Maine 3rd Michigan 5th Michigan 93rd New York: Col John S. Crocker 57th Pennsylvania 63rd Pennsylvania 105th Pennsylvania 1st United States Sharpshooters
	3rd Brigade    BG Gershom Mott	1st Massachusetts 16th Massachusetts 5th New Jersey 6th New Jersey 7th New Jersey 8th New Jersey 11th New Jersey 26th Pennsylvania 115th Pennsylvania
	4th Brigade    Col William R. Brewster	11th Massachusetts 70th New York 71st New York 72nd New York 73rd New York 74th New York 120th New York 84th Pennsylvania
Fourth Division[43]      BG Robert O. Tyler	no brigade organization	1st Maine Heavy Artillery 1st Massachusetts Heavy Artillery 2nd New York Heavy Artillery 7th New York Heavy Artillery 8th New York Heavy Artillery
	Artillery Brigade    Col John C. Tidball	Maine Light, 6th Battery (F) Massachusetts Light, 10th Battery New Hampshire Light, 1st Battery 1st New Jersey Light, Battery B[44] 1st New York Light, Battery G 4th New York Heavy, 3rd Battalion New York Light, 11th Battery[44] New York Light, 12th Battery[44] 1st Pennsylvania Light, Battery F 1st Rhode Island Light, Battery A 1st Rhode Island Light, Battery B 4th United States, Battery K 5th United States, Batteries C and I

V Corps

MG Gouverneur K. Warren

Provost Guard:

• 12th New York Battalion

Division	Brigade	Regiments and Others
First Division      BG Charles Griffin	1st Brigade    BG Romeyn B. Ayres	140th New York 146th New York 91st Pennsylvania 155th Pennsylvania 2nd United States, Companies B, C, F, H, I, and K 11th United States, Companies B, C, D, E, F, and G, 1st Battalion 12th United States, Companies A, B, C, D, and G, 1st Battalion, and Companies A, C, D, F, and H, 2nd Battalion 14th United States, 1st Battalion 17th United States, Companies A, C, D, G, and H, 1st Battalion, and Companies A, B, and C, 2nd Battalion
	2nd Brigade    Col Jacob B. Sweitzer	9th Massachusetts 22nd Massachusetts[24] 32nd Massachusetts 4th Michigan 62nd Pennsylvania
	3rd Brigade    BG Joseph J. Bartlett	20th Maine 18th Massachusetts 1st Michigan 16th Michigan[25] 44th New York 83rd Pennsylvania 118th Pennsylvania
Third Division      BG Samuel W. Crawford	1st Brigade    Col Samuel M. Jackson    Col Martin D. Hardin[45]	1st Pennsylvania Reserves 2nd Pennsylvania Reserves 6th Pennsylvania Reserves 7th Pennsylvania Reserves 11th Pennsylvania Reserves: Col Samuel M. Jackson 13th Pennsylvania Reserves (1st Rifles)
	2nd Brigade    Col Richard Coulter (w)    Col James L. Bates	12th Massachusetts: Col James L. Bates 83rd New York (9th Militia) 97th New York 11th Pennsylvania 88th Pennsylvania
	3rd Brigade    Col Joseph W. Fisher	5th Pennsylvania Reserves 10th Pennsylvania Reserves 12th Pennsylvania Reserves
Fourth Division      BG Lysander Cutler	1st Brigade    Col William W. Robinson	7th Indiana 19th Indiana 24th Michigan 1st New York Battalion Sharpshooters 6th Wisconsin 7th Wisconsin
	2nd Brigade    Col Edward B. Fowler[46]    Col J. William Hofmann	76th New York 84th New York[47] (14th Militia) 95th New York 147th New York 56th Pennsylvania: Col J. William Hofmann
	3rd Brigade    Col Edward S. Bragg	121st Pennsylvania 142nd Pennsylvania 143rd Pennsylvania 149th Pennsylvania 150th Pennsylvania
	4th Brigade    Col Peter Lyle	16th Maine 13th Massachusetts 39th Massachusetts 104th New York 90th Pennsylvania 107th Pennsylvania
	Provost Guard	2nd Wisconsin
Reporting directly	Heavy Artillery Brigade    Col J. Howard Kitching	6th New York Heavy Artillery 15th New York Heavy Artillery, 1st and 3rd Battalions
	Maryland Brigade    Col Richard N. Bowerman	1st Maryland 4th Maryland 7th Maryland 8th Maryland
	Artillery Brigade    Col Charles S. Wainwright	Massachusetts Light, Battery C Massachusetts Light, Battery E Massachusetts Light, 9th Battery[44] 1st New York Light, Battery B[44] 1st New York Light, Battery C[44] 1st New York Light, Battery D 1st New York Light, Batteries E and L 1st New York Light, Battery H New York Light, 5th Battery[44][48] New York Light, 15th Battery[44] 4th New York Heavy, 2nd Battalion 1st Pennsylvania Light, Battery B 4th United States, Battery B 5th United States, Battery D

VI Corps

BG Horatio G. Wright
Escort:

• 8th Pennsylvania Cavalry, Company A

Division	Brigade	Regiments and Others
First Division      BG David A. Russell	1st Brigade    Col William H. Penrose	1st New Jersey 2nd New Jersey 3rd New Jersey 4th New Jersey 10th New Jersey 15th New Jersey
	2nd Brigade    Col Emory Upton	2nd Connecticut Heavy Artillery[49] 5th Maine 121st New York 95th Pennsylvania Infantry 96th Pennsylvania
	3rd Brigade    BG Henry L. Eustis	6th Maine 49th Pennsylvania 119th Pennsylvania 5th Wisconsin
	4th Brigade    Col Nelson Cross	65th New York 67th New York 122nd New York 82nd Pennsylvania (detachment)
Second Division      BG Thomas H. Neill	1st Brigade    BG Frank Wheaton	62nd New York 93rd Pennsylvania 98th Pennsylvania 102nd Pennsylvania 139th Pennsylvania
	2nd Brigade    Col Lewis A. Grant	1st Vermont Heavy Artillery 2nd Vermont 3rd Vermont 4th Vermont 5th Vermont 6th Vermont
	3rd Brigade    Col Daniel D. Bidwell	7th Maine 43rd New York 49th New York 77th New York 61st Pennsylvania
	4th Brigade    Col Oliver Edwards	7th Massachusetts 10th Massachusetts 37th Massachusetts 2nd Rhode Island
Third Division      BG James B. Ricketts	1st Brigade    Col William S. Truex	14th New Jersey 106th New York 151st New York 87th Pennsylvania 10th Vermont
	2nd Brigade    Col Benjamin F. Smith	6th Maryland 110th Ohio 122nd Ohio 126th Ohio 67th Pennsylvania 138th Pennsylvania
	Artillery Brigade    Col Charles H. Tompkins	Maine Light, 4th Battery (D) Maine Light, 5th Battery (E)[44] Massachusetts Light, 1st Battery (A) 1st New Jersey Light, Battery A[44] New York Light, 1st Battery New York Light, 3rd Battery 4th New York Heavy, 1st Battalion 1st Ohio Light, Battery H[44] 1st Rhode Island Light, Battery C 1st Rhode Island Light, Battery E 1st Rhode Island Light, Battery G 5th United States, Battery E[44] 5th United States, Battery M

Cavalry

Brigade	Regiments and Others
Torbert's Command    BG Alfred T. A. Torbert[50]	5th New York 1st Pennsylvania (detachment) 13th Pennsylvania 16th Pennsylvania (detachment) 1st Massachusetts (detachment)

Artillery

Division	Brigade	Regiments and Others
Artillery      BG Henry J. Hunt[35][51]	2nd Brigade Horse Artillery    Cpt Dunbar R. Ransom	1st United States, Batteries E and G[52] 1st United States, Batteries H and I 1st United States, Battery K 2nd United States, Battery A 2nd United States, Battery G 3rd United States, Batteries C, F, and K
	Artillery Park    Ltc Freeman McGilvery	15th New York Heavy, 2nd Battalion

See also

• Wilderness Union order of battle
• Cold Harbor Union order of battle

Notes

1. Official Records, Series I, Volume XXXVI, Part 1, pages 136–153
2. Official Records, Series I, Volume XXXVI, Part 1, pages 1162–1168
3. Multiple commander names indicate command succession of command during the battle or the campaign.
4. The IX Corps was under the direct orders of Lieutenant General Grant until May 24, 1864, when it was assigned to the Army of the Potomac. (see: Official Records, Series I, Volume XXXVI, Part 3, page 169)
5. Assumed command May 12, 1864
6. Disabled by sickness May 8, 1864
7. Assumed command May 13, 1864
8. Commanded the division May 10–12, 1864; disabled by sickness May 14, 1864
9. Injured May 11, 1864 (see: Gordon C. Rhea, The Battles for Spotsylvania Court House and the Road to Yellow Tavern May 7–12, 1864, The Order of Battle)
10. 1st and 2nd Companies Michigan Sharpshooters attached
11. Disabled from command May 11, 1864 (see: Gordon C. Rhea, The Battles for Spotsylvania Court House and the Road to Yellow Tavern May 7–12, 1864, The Order of Battle)
12. Left army May 13, 1864
13. 9th and 10th Companies Ohio Sharpshooters attached
14. In reserve guarding trains
15. Not engaged; ordered to Washington May 16, 1864
16. Discontinued as an unattached command and assigned to the First Division May 12, 1864
17. Joined army May 15, 1864
18. 57th New York was on provost duty at Fredericksburg
19. Relieved for drunkenness on May 10, 1864 (see: Gordon C. Rhea, The Battles for Spotsylvania Court House and the Road to Yellow Tavern May 7–12, 1864, The Order of Battle)
20. Assigned May 10, 1864; captured May 12, 1864
21. Detachment 7th New York attached
22. Relieved for drunkenness on May 12, 1864 (see: Gordon C. Rhea, The Battles for Spotsylvania Court House and the Road to Yellow Tavern May 7–12, 1864, The Order of Battle)
23. Assigned as the Third and Fourth Brigades of the Third Division May 13, Mott taking command of the former and Brewster of the latter brigade (see: Official Records, Series I, Volume XXXVI, Part 2, pages 709 and 711)
24. 2nd Company Massachusetts Sharpshooters attached
25. Brady's Company Michigan Sharpshooters attached
26. Robinson was wounded on May 8, 1864. On May 9, 1864 the division was temporarily disbanded, the First Brigade being attached to the Fourth Division, and the Second to the Third Division; the Third Brigade served as an independent command under direct orders of the corps commander. This arrangement continued till May 30, 1864.
27. Joined May 16, 1864
28. Coulter assumed command of the division and Bates of the brigade May 8, 1864. The former returned to the brigade May 9, 1864
29. Left army May 15, 1864
30. Provost guard of division from May 11, 1864
31. Joined May 14, 1864
32. Assumed command May 14, 1864
33. Cavalry Corps absent on expedition toward Richmond from May 9, 1864
34. Detached from Cavalry Corps and left at Spotsylvania Court House during Richmond Raid. (see: Gordon C. Rhea, To The North Anna River: Grant and Lee May 13–25, 1864, The Order of Battle)
35. Chief of Artillery to the whole Army
36. 1st Brigade Horse Artillery detached with Cavalry Corps; 2nd Brigade Horse Artillery attached to the Artillery Reserve (see: Hunt's report)
37. Disbanded and distributed among the infantry corps May 16, 1864
38. Transferred to V Corps on May 13, 1864
39. Assigned to command Third Brigade, Second Division, May 17, 1864
40. Joined May 19, 1864
41. Joined May 17, 1864
42. Assigned May 18, 1864
43. Joined May 18 and 19, 1864
44. Transferred from Artillery Reserve May 16, 1864
45. Assumed command May 18, 1864
46. Relieved May 21, 1864
47. Left army May 21, 1864 (see: New York State Military Museum and Veterans Research Center - 84th Infantry Regiment)
48. Sent to Washington D.C. May 19, 1864
49. Joined May 21, 1864 (see: Upton's report; Gordon C. Rhea, To The North Anna River: Grant and Lee May 13–25, 1864, The Order of Battle)
50. Rejoined the army on May 16, 1864, and assumed command of all the cavalry (see: Torbert's report; Official Records, Series I, Volume XXXVI, Part 2, pages 851-852; Gordon C. Rhea, To The North Anna River: Grant and Lee May 13–25, 1864, page 192)
51. 1st Brigade Horse Artillery detached with Cavalry Corps; 2nd Brigade Horse Artillery stayed with the Army in Reserve (see: Hunt's report)
52. Attached to Torbert's Command (see: Gordon C. Rhea, To The North Anna River: Grant and Lee May 13–25, 1864, page 192)

References

• Rhea, Gordon C. The Battles for Spotsylvania Court House and the Road to Yellow Tavern May 7–12, 1864. Baton Rouge: Louisiana State University Press, 1997. ISBN 0-8071-3067-2
• Rhea, Gordon C. To The North Anna River: Grant and Lee May 13–25, 1864. Baton Rouge: Louisiana State University Press, 2000. ISBN 0-8071-3111-3
• U.S. War Department, The War of the Rebellion: a Compilation of the Official Records of the Union and Confederate Armies, U.S. Government Printing Office, 1880–1901.