Battles of Cold Harbor, Virginia

Battles of Cold Harbor, Virginia - Multiple units engage at Cold Harbor near Mechanicsville in Hanover County, Virginia from May 31-June 12, 1864.
* NOTE: According to the battle returns, this operation was "divided" into:
** Forces operating against Richmond from May 31-June 5, 1864
** Forces operating against Richmond from June 6-12, 1864
** Notes have been made when units change - likely many units' military terms expiring around this time/some units break off to participate in smaller actions/operations
* This engagement may also contain smaller skirmishes
* Also referred to as the 
** Engagement at Cold Harbor, Virginia
** Battle of Cold Harbor, Virginia
== Sub-Operations ==
* May 4-June 12, 1864 - The Overland Campaign
** May 31-June 1, 1864 - Engagement at Cold Harbor, Virginia
** May 31-June 1, 1864 - Combat at Bethesda Church, Virginia
** June 1, 1864 - Skirmish near Ashland, Virginia
** June 1-3, 1864 - Battle of Bethesda Church, Virginia
** June 11, 1864 - Skirmish at Bethesda Church, Virginia
== Union Troops ==
 
 
 Overall Command
NOTE: Primarily Army of the Potomac, as the Army of the James was one 1 Corps
* Ulysses S. Grant - Lieutenant General, Commanding
* Escort:
** 5th United States Cavalry / Companies B/F/K
Army of the Potomac
* George Meade, Major General 
General Staff
* Chief of Staff: Andrew A. Humphreys, Major General
* Assistant Adjutant General: Seth Williams, Brigadier General
* Chief Quartermaster: Rufus Ingalls, Brigadier General
General Headquarters
* Provost Guard: Marsena R. Patrick, Brigadier General
** 1st Massachusetts Cavalry / Companies C/D
** 80th New York Infantry
** 3rd Pennsylvania Cavalry
** 68th Pennsylvania Infantry
** 114th Pennsylvania Infantry
Engineer Troops
* 15th New York EngineersAt Fort Monroe, Virginia; Brigadier General Henry W. Benham was not present (see: Benham's report)
* 50th New York Engineers
* 1st United States Engineer Battalion
Guards and Orderlies
* Oneida (Independent) Cavalry Company
Unattached
* 22nd New York CavalryAt Port Royal, Virginia; joined Second Brigade, Third Division, Cavalry Corps on June 5, 1864 (see: Chapman's report)
 
 
 (AoP) 2nd Corps
* Winfield Scott Hancock, Major General
Escort:
* 1st Vermont Cavalry / Company M
Division	Brigade 	Regiments andSmaller Units
1st Division
Francis C. Barlow, Brigadier General	1st Brigade
Nelson A. Miles, Colonel	
* 26th Michigan Infantry
* 5th New Hampshire InfantryArrived June 1, 1864
* 2nd New York Heavy Artillery
* 61st New York Infantry
* 81st Pennsylvania Infantry
* 140th Pennsylvania Infantry
* 183rd Pennsylvania Infantry
1st Division
Francis C. Barlow, Brigadier General	2nd BrigadeThe ("Irish Brigade")
Richard Byrnes, ColonelPatrick Kelly, Colonel	
* 28th Massachusetts Infantry
* 63rd New York Infantry
* 69th New York Infantry
* 88th New York Infantry - Patrick Kelly, Colonel
* 116th Pennsylvania Infantry
1st Division
Francis C. Barlow, Brigadier General	3rd Brigade
Clinton D. MacDougall, Colonel	
* 39th New York Infantry
* 52nd New York Infantry
** 7th New York Infantry (Detachment)
* 57th New York InfantryDetached at Port Royal, Virginia; rejoined brigade June 5, 1864 (see: Wilder's report)
* 111th New York Infantry
* 125th New York Infantry
* 126th New York Infantry
1st Division
Francis C. Barlow, Brigadier General	4th Brigade
John R. Brooke, ColonelOrlando H. Morris, ColonelLewis O. Morris, ColonelJames A. Beaver, Colonel	
* 2nd Delaware Infantry
* 7th New York Heavy Artillery - Lewis O. Morris, Colonel
* 64th New York Infantry
* 66th New York Infantry - Orlando H. Morris, Colonel
* 53rd Pennsylvania Infantry
* 145th Pennsylvania Infantry
* 148th Pennsylvania Infantry - James A. Beaver, Colonel
2nd Division
John Gibbon, Brigadier General	1st Brigade
H. Boyd McKeen, ColonelFrank A. Haskell, Colonel
Byron R. Pierce, Brigadier GeneralAssigned June 4, 1864	
* 19th Maine Infantry
* 15th Massachusetts Infantry
* 19th Massachusetts Infantry
* 20th Massachusetts Infantry
** 1st Massachusetts Sharpshooter Company
* 7th Michigan Infantry
* 42nd New York Infantry
* 59th New York Infantry
* 82nd New York Infantry
* 184th Pennsylvania Infantry
* 36th Wisconsin Infantry - Frank A. Haskell, Colonel
2nd Division
John Gibbon, Brigadier General	2nd Brigade(The "Philadelphia Brigade")
Joshua T. Owen, Brigadier General	
* 152nd New York Infantry
* 69th Pennsylvania Infantry
* 71st Pennsylvania Infantry
* 72nd Pennsylvania Infantry
* 106th Pennsylvania Infantry
2nd Division
John Gibbon, Brigadier General	3rd Brigade
Thomas A. Smyth, Colonel	
* 14th Connecticut Infantry
* (II) 1st Delaware Infantry
* 14th Indiana InfantryUntil June 6
* 12th New Jersey Infantry
* 10th New York Infantry
* 108th New York Infantry
* (II) 4th Ohio Infantry
* (II) 8th Ohio Infantry
* 7th West Virginia Infantry
2nd Division
John Gibbon, Brigadier General	4th Brigade
Robert O. Tyler, Brigadier General
James P. McIvor, Colonel	
* 8th New York Heavy Artillery
* 155th New York Infantry
* 164th New York Infantry
* 170th New York Infantry - James P. McIvor, Colonel
* 182nd New York Infantry
2nd Division
John Gibbon, Brigadier General	Provost Guard	
* 2nd Minnesota Sharpshooter Company
3rd Division
David B. Birney, Major General	1st Brigade
Thomas W. Egan, Colonel	
* 20th Indiana Infantry
* 3rd Maine InfantryUntil June 5
* 17th Maine InfantryTransferred from 2nd Brigade June 5
* 40th New York Infantry
* 86th New York Infantry
* 124th New York Infantry
* 99th Pennsylvania Infantry
* 110th Pennsylvania Infantry
* 141st Pennsylvania Infantry
* 2nd United States Sharpshooters
3rd Division
David B. Birney, Major General	2nd Brigade
Thomas R. Tannatt, Colonel	
* 4th Maine Infantry
* 17th Maine InfantryTransferred to 1st Brigade June 5
* 1st Massachusetts Heavy Artillery
* (I) 3rd Michigan InfantryUntil June 9
* 5th Michigan Infantry
* 93rd New York Infantry
* 57th Pennsylvania Infantry
* 63rd Pennsylvania Infantry
* 105th Pennsylvania Infantry
* 1st United States Sharpshooters
3rd Division
David B. Birney, Major General	3rd Brigade
Gershom Mott, Brigadier General	
* 1st Maine Heavy Artillery
* 16th Massachusetts Infantry
* 5th New Jersey Infantry
* 6th New Jersey Infantry
* 7th New Jersey Infantry
* 8th New Jersey Infantry
* 11th New Jersey Infantry
* 115th Pennsylvania Infantry
3rd Division
David B. Birney, Major General	4th Brigade
William R. Brewster, Colonel	
* 11th Massachusetts Infantry
* 70th New York Infantry
* 71st New York Infantry
* 72nd New York InfantryAttached to the 120th New York Infantry 
* 73rd New York Infantry
* 74th New York Infantry
* 120th New York Infantry
* 84th Pennsylvania Infantry
 	Artillery Brigade
John C. Tidball, Colonel	
* 6th Maine Light Artillery Battery ("Battery F")
* 10th Massachusetts Light Artillery Battery
* 1st New Hampshire Light Artillery Battery
* 1st New Jersey Light Artillery Battery ("Battery A")
* 2nd New Jersey Light Artillery Battery ("Battery B")
* 1st New York Light Artillery / Battery G
* 4th New York Heavy ArtilleryThe First Battalion joined from the VI Corps May 31, 1864, and the Second Battalion from the V Corps May 29, 1864, thus uniting the three battalions
* 11th New York (Independent) Light Artillery Battery
* 12th New York (Independent) Light Artillery Battery
* 1st Pennsylvania Light Artillery / Battery F
* 1st Rhode Island Light Artillery / Battery A
* 1st Rhode Island Light Artillery / Battery B
* 4th United States Artillery / Battery K
* 5th United States Artillery / Battery C
* 5th United States Artillery / Battery I
 
 
 (AoP) 5th Corps
* Gouverneur K. Warren, Major General
* Provost Guard
** (II) 12th New York Infantry (battalion)
* Re-organized on June 5, 1864
Division 	Brigade 	Regiments andSmaller Units
1st DivisionCharles Griffin, Brigadier General 	1st BrigadeFrom former 4th Division / 3rd BrigadeRomeyn B. Ayres, Brigadier GeneralEdward S. Bragg, ColonelJoshua Lawrence Chamberlain, Colonel	
* 140th New York Infantry
* 146th New York Infantry
* 91st Pennsylvania Infantry
* 155th Pennsylvania Infantry
* 2nd United States Infantry / Companies B/C/F/H/I/K
* 11th United States Infantry Companies B/C/D/E/F/G (1st Battalion)
* 12th United States Infantry 
** Companies A/B/C/D/G (1st Battalion)
** Companies A/C/D/F/H (2nd Battalion)
* 14th United States Infantry (1st Battalion)
* 17th United States Infantry
** Companies A/C/D/G/H (1st Battalion)
** Companies A/B/C (2nd Battalion)
* 121st Pennsylvania Infantry
* 142nd Pennsylvania Infantry
* 143rd Pennsylvania Infantry
* 149th Pennsylvania Infantry
* 150th Pennsylvania Infantry
* 187th Pennsylvania InfantryJoined June 6, 1864
1st DivisionCharles Griffin, Brigadier General 	2nd BrigadeJacob B. Sweitzer, Colonel 	
* 9th Massachusetts InfantryOrdered home for muster out June 9, 1864
* 22nd Massachusetts Infantry - William S. Tilton, Colonel
** 2nd Massachusetts Sharpshooter Company
* 32nd Massachusetts Infantry
* (I) 4th Michigan Infantry
* 62nd Pennsylvania Infantry
* (II) 21st Pennsylvania Cavalry (dismounted)Arrived June 1, 1864Gordon C. Rhea in Cold Harbor: Grant and Lee May 26-June 3, 1864, The Order of Battle lists the 21st Pennsylvania Cavalry in the 1st Brigade (see also: Pennsylvania in the Civil War - 21st Pennsylvania Cavalry)
1st DivisionCharles Griffin, Brigadier General 	3rd BrigadeJoseph J. Bartlett, Brigadier General 	
* 20th Maine Infantry
* 18th Massachusetts Infantry
* (II) 1st Michigan Infantry
* 16th Michigan Infantry
** Brady's (Independent) Sharpshooter Company
* 44th New York Infantry
* 83rd Pennsylvania Infantry
* 118th Pennsylvania Infantry
2nd DivisionAssigned June 6, 1864Henry Hayes Lockwood, Brigadier GeneralAssigned June 2, 1864 (see: Official Records, Series I, Volume XXXVI, Part 3, page 495)Samuel Wylie Crawford, Brigadier GeneralRomeyn B. Ayres, Brigadier General	1st BrigadeWas 1st Division / 1st Brigade until June 6, 1864Edgar M. Gregory, Colonel 	
* 16th Maine Infantry
* 13th Massachusetts Infantry
* 39th Massachusetts Infantry
* 104th New York Infantry
* 90th Pennsylvania Infantry
* 107th Pennsylvania Infantry
* (II) 5th New York InfantryArrived June 1, 1864
* 140th New York Infantry
* 146th New York Infantry
* 91st Pennsylvania Infantry
* 155th Pennsylvania Infantry
* 2nd United States Infantry / Companies B/C/F/H/I/K
* 11th United States Infantry Companies B/C/D/E/F/G (1st Battalion)
* 12th United States Infantry 
** Companies A/B/C/D/G (1st Battalion)
** Companies A/C/D/F/H (2nd Battalion)
* 14th United States Infantry (1st Battalion)
* 17th United States Infantry
** Companies A/C/D/G/H (1st Battalion)
** Companies A/B/C (2nd Battalion)
2nd DivisionAssigned June 6, 1864Henry Hayes Lockwood, Brigadier GeneralAssigned June 2, 1864 (see: Official Records, Series I, Volume XXXVI, Part 3, page 495)Samuel Wylie Crawford, Brigadier GeneralRomeyn B. Ayres, Brigadier General	2nd BrigadeWas 2nd Division / 3rd Brigade until June 6, 1864James L. Bates, ColonelNathan D. Dushane, Colonel 	
* 12th Massachusetts Infantry
* 83rd New York Infantry
* 97th New York Infantry
* (II) 11th Pennsylvania Infantry
* 88th Pennsylvania Infantry
* 1st Maryland Infantry (U)
* 4th Maryland Infantry (U)
* 7th Maryland Infantry (U)
* 8th Maryland Infantry (U)
* Purnell Legion Infantry (U)
2nd DivisionAssigned June 6, 1864Henry Hayes Lockwood, Brigadier GeneralAssigned June 2, 1864 (see: Official Records, Series I, Volume XXXVI, Part 3, page 495)Samuel Wylie Crawford, Brigadier GeneralRomeyn B. Ayres, Brigadier General	3rd BrigadeNathan D. Dushane, ColonelJ. Howard Kitching, Colonel 	
* 1st Maryland Infantry (U)
* 4th Maryland Infantry (U)
* 7th Maryland Infantry (U)
* 8th Maryland Infantry (U)
* Purnell Legion Infantry (U)
* 6th New York Heavy Artillery 
* 15th New York Heavy Artillery 
** 1st Battalion
** 1st Battalion
3rd DivisionSamuel M. Jackson, ColonelSamuel Wylie Crawford, Colonel 	1st BrigadeWas 2nd Division / 1st Brigade up to June 6, 1864Martin D. Hardin, Colonel 	
* 1st Pennsylvania (Reserve) InfantryLeft front June 1, 1864
* 2nd Pennsylvania (Reserve) InfantryLeft front June 1, 1864
* 6th Pennsylvania (Reserve) InfantryLeft front June 1, 1864
* 7th Pennsylvania (Reserve) InfantryLeft front May 31, 1864
* 13th Pennsylvania (Reserve) InfantryLeft front June 1, 1864
* 16th Maine Infantry
* 13th Massachusetts Infantry
* 39th Massachusetts Infantry
* 94th New York InfantryTransferred to 2nd Brigade on June 11, 1864
* 104th New York Infantry
* 90th Pennsylvania Infantry
* 107th Pennsylvania Infantry
3rd DivisionSamuel M. Jackson, ColonelSamuel Wylie Crawford, Colonel 	2nd BrigadeWas 2nd Division / 2nd Brigade up to June 6, 1864James L. Bates, Colonel 	
* 12th Massachusetts Infantry
* 83rd New York Infantry
* 94th New York Infantry
* 97th New York Infantry
* (II) 11th Pennsylvania Infantry
* 88th Pennsylvania Infantry
3rd DivisionSamuel M. Jackson, ColonelSamuel Wylie Crawford, Colonel 	3rd BrigadeJoseph W. Fisher, ColonelWilliam R. Hartshorne, MajorJames Carle, Colonel 	
* 5th Pennsylvania (Reserve) InfantryLeft front May 31, 1864
* 10th Pennsylvania (Reserve) InfantryLeft front May 31, 1864
* 12th Pennsylvania (Reserve) InfantryLeft front May 31, 1864
* 190th Pennsylvania Infantry
* 191st Pennsylvania Infantry
3rd DivisionSamuel M. Jackson, ColonelSamuel Wylie Crawford, Colonel 	Heavy Artillery BrigadeJ. Howard Kitching, Colonel 	
* 6th New York Heavy Artillery
* 15th New York Heavy Artillery
** 1st Battalion
** 1st Battalion
4th DivisionLysander Cutler, Brigadier General 	1st BrigadeWilliam W. Robinson, ColonelEdward S. Bragg, Colonel 	
* (II) 7th Indiana Infantry
* 19th Indiana Infantry
* 24th Michigan Infantry
* 1st New York Sharpshooter Battalion
* 6th Wisconsin Infantry
* 7th Wisconsin Infantry
4th DivisionLysander Cutler, Brigadier General 	2nd BrigadeJ. William Hofmann, Colonel 	
* 3rd Delaware Infantry
* 4th Delaware InfantryArrived June 1, 1864
* 46th New York InfantryTransferred to IX Corps on June 4, 1864 (see: Cutcheon's and Serviere's report)
* 76th New York Infantry
* 95th New York Infantry
* 147th New York Infantry
* 56th Pennsylvania Infantry
* 157th Pennsylvania InfantryArrived June 1, 1864
4th DivisionLysander Cutler, Brigadier General 	3rd BrigadeEdward S. Bragg, Colonel 	
* 121st Pennsylvania Infantry
* 142nd Pennsylvania Infantry
* 143rd Pennsylvania Infantry
* 149th Pennsylvania Infantry
* 150th Pennsylvania Infantry
4th DivisionLysander Cutler, Brigadier General 	Provost Guard 	
* 2nd Wisconsin Infantry
 	Artillery BrigadeCharles S. Wainwright, Colonel 	
* 3rd Massachusetts Light Artillery Battery
* 5th Massachusetts Light Artillery Battery
* 9th Massachusetts Light Artillery Battery
* 1st New York Light Artillery / Battery B
* 1st New York Light Artillery / Battery C
* 1st New York Light Artillery / Battery D
* 1st New York Light Artillery / Battery E
* 1st New York Light Artillery / Battery H
* 1st New York Light Artillery / Battery L
* 15th New York (Independent) Light Artillery Battery
* 1st Pennsylvania Light Artillery / Battery B
* 4th New York Heavy Artillery (2nd Battalion)
* 1st Pennsylvania Light Artillery / Battery B
* 4th United States Artillery / Battery B
* 5th United States Artillery / Battery D
 
 
 (AoP) 6th Corps
* Horatio G. Wright, Major General
Escort:
* 8th Pennsylvania Cavalry / Company A
Division	Brigade 	Regiments andSmaller Units
1st Division
David Allen Russell, Brigadier General	1st Brigade(The "1st New Jersey Brigade")
William H. Penrose, Colonel 	
* (II) 1st New Jersey InfantryOrdered home for muster-out June 4, 1864
* (II) 3rd New Jersey InfantryOrdered home for muster-out June 4, 1864
* 1st Delaware Cavalry (Dismounted)Assigned June 5
* (II) 4th New Jersey Infantry
* 10th New Jersey Infantry
* 15th New Jersey Infantry
1st Division
David Allen Russell, Brigadier General	2nd Brigade
Emory Upton, Brigadier General 	
* 2nd Connecticut Heavy Artillery
* 5th Maine Infantry
* 121st New York Infantry
* 95th Pennsylvania Infantry
* 96th Pennsylvania Infantry
1st Division
David Allen Russell, Brigadier General	3rd Brigade
Henry L. Eustis, Brigadier GeneralRelieved June 12, 1864Gideon Clark, Lieutenant Colonel 	
* 6th Maine Infantry
* 49th Pennsylvania Infantry
* 119th Pennsylvania Infantry - Gideon Clark, Lieutenant Colonel
* (I) 5th Wisconsin Infantry
1st Division
David Allen Russell, Brigadier General	4th Brigade
Nelson Cross, Colonel 	
* 65th New York Infantry
* 67th New York Infantry
* 122nd New York Infantry
* (II) 23rd Pennsylvania Infantry
* 82nd Pennsylvania Infantry
2nd Division
Thomas H. Neill, Brigadier General	1st Brigade
Frank Wheaton, Brigadier General 	
* 62nd New York Infantry
* 93rd Pennsylvania Infantry
* 98th Pennsylvania Infantry
* 102nd Pennsylvania Infantry
* 139th Pennsylvania Infantry
2nd Division
Thomas H. Neill, Brigadier General	2nd Brigade(The "1st Vermont Brigade")
Lewis A. Grant, Brigadier General 	
* 1st Vermont Heavy Artillery
* 2nd Vermont Infantry
* 3rd Vermont Infantry
* 4th Vermont Infantry
* 5th Vermont Infantry
* 6th Vermont Infantry
2nd Division
Thomas H. Neill, Brigadier General	3rd Brigade
Daniel D. Bidwell, Colonel 	
* 7th Maine Infantry
* 43rd New York Infantry
* 49th New York Infantry
* 77th New York Infantry
* 61st Pennsylvania Infantry
2nd Division
Thomas H. Neill, Brigadier General	4th Brigade
Oliver Edwards, Colonel 	
* 7th Massachusetts Infantry
* 10th Massachusetts Infantry
* 37th Massachusetts Infantry
* 2nd Rhode Island Infantry
3rd Division
James B. Ricketts, Brigadier General	1st BrigadeWilliam S. Truex, ColonelCaldwell K. Hall, Lieutenant ColonelJohn W. Schall, ColonelAssumed command June 2, 1864 and wounded June 3, 1864Caldwell K. Hall, Lieutenant Colonel	
* 14th New Jersey Infantry - Caldwell K. Hall, Lieutenant Colonel
* 106th New York Infantry
* 151st New York Infantry
* 87th Pennsylvania Infantry
* 10th Vermont Infantry
3rd Division
James B. Ricketts, Brigadier General	2nd Brigade
Benjamin F. Smith, Colonel 	
* 6th Maryland Infantry (U)
* 9th New York Heavy Artillery
** 1st Battalion
** 3rd Battalion
* 110th Ohio Infantry
* 122nd Ohio Infantry
* 126th Ohio Infantry
* 67th Pennsylvania Infantry
* 138th Pennsylvania Infantry
 	Artillery Brigade
Charles H. Tompkins, Colonel 	
* 4th Maine Light Artillery Battery ("Battery D")
* 5th Maine Light Artillery Battery ("Battery E")
* 1st Massachusetts Light Artillery Battery
* 1st New Jersey Light Artillery Battery ("Battery A")
* 1st New York (Independent) Light Artillery Battery
* 3rd New York (Independent) Light Artillery Battery
* 9th New York Heavy Artillery / 2nd Battalion
* 1st Ohio Light Artillery / Battery H
* 1st Rhode Island Light Artillery / Battery C
* 1st Rhode Island Light Artillery / Battery E
* 1st Rhode Island Light Artillery / Battery G
* 5th United States Artillery / Battery E
* 5th United States Artillery / Battery M
 
 
 (AoP) 9th Corps
* Ambrose E. Burnside, Major General
General Staff:
* Chief of Staff: John G. Parke, Major General
* Chief of Artillery: J. Albert Monroe, Lieutenant Colonel
Provost Guard:
* 8th United States Infantry
* NOTE: 4th Division listed in Wikipedia Order of Battle, but according to unit profiles this division was guarding the army trains and did not participate in the battle itself
Division	Brigade 	Regiments andSmaller Units
1st Division
Thomas Leonidas Crittenden, Major GeneralJames H. Ledlie, Brigadier General	1st Brigade
James H. Ledlie, Brigadier GeneralJacob P. Gould, Colonel	
* 56th Massachusetts Infantry
* 57th Massachusetts Infantry
* 59th Massachusetts Infantry - Jacob P. Gould, Colonel
* 4th United States Infantry
* 10th United States Infantry
1st Division
Thomas Leonidas Crittenden, Major GeneralJames H. Ledlie, Brigadier General	2nd Brigade
Gilbert P. Robinson, Lieutenant ColonelJoseph M. Sudsburg, ColonelAssumed command May 31, 1864Ebenezer W. Peirce, ColonelAssigned June 4, 1864	
* 3rd Maryland Infantry (U)
* 21st Massachusetts Infantry
* 29th Massachusetts Infantry
* 179th New York InfantryAssigned June 11
* 100th Pennsylvania Infantry
1st Division
Thomas Leonidas Crittenden, Major GeneralJames H. Ledlie, Brigadier General	Provisional Brigade
Elisha G. Marshall, Colonel	
* 2nd New York Mounted Rifles (dismounted)
* 14th New York Heavy Artillery
* 24th New York Cavalry (dismounted)
* 2nd Pennsylvania Provisional Heavy Artillery
1st Division
Thomas Leonidas Crittenden, Major GeneralJames H. Ledlie, Brigadier General	Acting Engineers	
* 35th Massachusetts Infantry
1st Division
Thomas Leonidas Crittenden, Major GeneralJames H. Ledlie, Brigadier General	Artillery 	
* 2nd Maine Light Artillery Battery ("Battery B")
* 14th Massachusetts Light Artillery Battery
* 27th New York (Independent) Light Artillery BatteryJoined June 6, 1864 (see: Itinerary First Division, Ninth Army Corps)
2nd Division
Robert B. Potter, Brigadier General	1st Brigade
John I. Curtin, Colonel	
* 36th Massachusetts Infantry
* 58th Massachusetts Infantry
* 45th Pennsylvania Infantry
* 48th Pennsylvania Infantry
* 7th Rhode Island Infantry
2nd Division
Robert B. Potter, Brigadier General	2nd Brigade
Simon Goodell Griffin, Colonel	
* 2nd Maryland Infantry (U) (detachment)
* 31st Maine Infantry
* 32nd Maine Infantry
* 6th New Hampshire Infantry
* 9th New Hampshire Infantry
* 11th New Hampshire Infantry
* 17th Vermont Infantry
2nd Division
Robert B. Potter, Brigadier General	Acting Engineers	
* 51st New York Infantry
2nd Division
Robert B. Potter, Brigadier General	Artillery 	
* (II) 11th Massachusetts Light Artillery Battery
* 19th New York (Independent) Light Artillery Battery
3rd Division
Orlando B. Willcox, Brigadier General	1st Brigade
John F. Hartranft, Colonel	
* 2nd Michigan Infantry
* 8th Michigan Infantry
* 27th Michigan Infantry
** 1st Michigan Sharpshooter CompanyWikipedia - no reference to this in Dyer or other Michigan Sharpshooter company pages
** 2nd Michigan Sharpshooter CompanyWikipedia - no reference to this in Dyer or other Michigan Sharpshooter company pages
* 109th New York Infantry
* 51st Pennsylvania Infantry
* 38th Wisconsin InfantryAssigned June 10
3rd Division
Orlando B. Willcox, Brigadier General	2nd Brigade
Benjamin C. Christ, Colonel	
* 1st Michigan Sharpshooters
* 20th Michigan Infantry
* 46th New York InfantryTransferred from 5th Corps / 3rd Division / 1st Brigade on June 4, 1864 (see: Cutcheon's and Serviere's report)
* (II) 60th Ohio Infantry
** 9th Ohio (Independent) Sharpshooter Company
** 10th Ohio (Independent) Sharpshooter Company
* 50th Pennsylvania Infantry
3rd Division
Orlando B. Willcox, Brigadier General	Acting Engineers	
* 17th Michigan Infantry
3rd Division
Orlando B. Willcox, Brigadier General	Artillery 	
* 7th Maine Light Artillery Battery ("Battery G")
* 34th New York (Independent) Light Artillery Battery
4th Division(United States Colored Troops)
Edward Ferrero, Brigadier General	1st Brigade
Joshua K. Sigfried, Colonel	
* 27th United States (Colored) Infantry
* 30th United States (Colored) Infantry
* 39th United States (Colored) Infantry
* 43rd United States (Colored) Infantry
4th Division(United States Colored Troops)
Edward Ferrero, Brigadier General	2nd Brigade
Henry G. Thomas, Colonel	
* 19th United States (Colored) Infantry
* 23rd United States (Colored) Infantry
* 31st United States (Colored) Infantry
4th Division(United States Colored Troops)
Edward Ferrero, Brigadier General	Artillery 	
* 1st Pennsylvania Light Artillery / Battery D
* 3rd Vermont Light Artillery Battery
 
 
 (AoP) Cavalry Corps
* Philip H. Sheridan, Major General
Escort:
* 6th United States Cavalry
Division 	Brigade 	Regiments andSmaller Units
1st DivisionAlfred Thomas Archimedes Torbert, Brigadier General	1st Brigade(The "Michigan Brigade")George Armstrong Custer, Brigadier General 	
* 1st Michigan Cavalry
* 5th Michigan Cavalry
* 6th Michigan Cavalry
* 7th Michigan Cavalry
1st DivisionAlfred Thomas Archimedes Torbert, Brigadier General	2nd BrigadeThomas C. Devin, Colonel 	
* 4th New York Cavalry
* 6th New York Cavalry
* 9th New York Cavalry
* 17th Pennsylvania Cavalry
1st DivisionAlfred Thomas Archimedes Torbert, Brigadier General	Reserve BrigadeWesley Merritt, Brigadier General 	
* 19th New York Cavalry
* 6th Pennsylvania Cavalry
* 1st United States Cavalry
* 2nd United States Cavalry
* 5th United States Cavalry
2nd DivisionDavid McMurtrie Gregg, Brigadier General 	1st BrigadeHenry E. Davies (Jr.), Brigadier General 	
* 1st Massachusetts Cavalry
* 1st New Jersey Cavalry
* 10th New York Cavalry
* 6th Ohio Cavalry
* 1st Pennsylvania Cavalry
2nd DivisionDavid McMurtrie Gregg, Brigadier General 	2nd BrigadeJohn Irvin Gregg, Colonel 	
* 1st Maine Cavalry
* 2nd Pennsylvania Cavalry
* 4th Pennsylvania Cavalry
* 8th Pennsylvania Cavalry
* 13th Pennsylvania Cavalry
* 16th Pennsylvania Cavalry
3rd DivisionJames H. Wilson, Brigadier General 	1st BrigadeJohn Baillie McIntosh, Colonel 	
* 1st Connecticut Cavalry
* 3rd New Jersey Cavalry
* 2nd New York Cavalry
* 5th New York Cavalry
* 2nd Ohio Cavalry
* 18th Pennsylvania Cavalry
3rd DivisionJames H. Wilson, Brigadier General 	2nd BrigadeGeorge H. Chapman, Colonel 	
* 3rd Indiana Cavalry (Right Wing)
* 1st New Hampshire CavalryJoined June 9, 1864 (see: Chapman's report) - unit homepage says only part of the regiment
* 8th New York Cavalry
* 22nd New York CavalryAt Port Royal, Virginia; joined June 5, 1864 (see: Chapman's report)
* 1st Vermont Cavalry
3rd DivisionJames H. Wilson, Brigadier General 	Escort 	
* 8th Illinois Cavalry (Detachment)
 	1st Brigade Horse Artillery(United States Horse Artillery)The two Horse Artillery brigades were consolidated under Captain Robertson on May 31, 1864 (see: Hunt's report; Official Records, Series I, Volume XXXVI, Part 3, page 377)James M. Robertson, Captain	
* 6th New York (Independent) Light Artillery BatterySent to the Department of Washington on May 31, 1864 (see: Hunt's report)
* 1st United States ArtilleryTransferred from Artillery on May 31, 1864
** Battery H / Battery I / Battery K
* 2nd United States Artillery
** Battery A / Battery B / Battery D / Battery L / Battery M
* 4th United States Artillery
** Battery A / Battery C / Battery E
 	1st Brigade Horse Artillery(United States Horse Artillery)The two Horse Artillery brigades were consolidated under Captain Robertson on May 31, 1864 (see: Hunt's report; Official Records, Series I, Volume XXXVI, Part 3, page 377)James M. Robertson, Captain	
 
 
 (AoP) Artillery
Division	Brigade	Regiments andSmaller Units
Artillery
Henry Jackson Hunt, Brigadier GeneralChief of Artillery to the whole Army	2nd Brigade Horse Artillery
Dunbar R. Ransom, Captain	
* 1st United States Artillery
** Battery E / Battery GSent to the Department of Washington on May 31, 1864 (see: Hunt's report) / Battery H / Battery I / Battery K
* 2nd United States Artillery
** Battery A / Battery G
* 3rd United States Artillery
** Battery C / Battery F / Battery K
Artillery
Henry Jackson Hunt, Brigadier GeneralChief of Artillery to the whole Army	Artillery Park
Freeman McGilvery, Lieutenant Colonel	
* 15th New York Heavy Artillery (2nd Battalion)
 
 
 (AoJ) 18th Corps
* William Farrar Smith, Major GeneralOn June 1, 1864 the XVIII Corps was placed under Meade's command (see: Official Records, Series I, Volume XXXVI, Part 3, page 466)
Division	Brigade	Regiments andSmaller Units
1st Division
William T.H. Brooks, Brigadier General	1st Brigade
Gilman Marston, Brigadier General	
* 81st New York Infantry
* 96th New York Infantry
* 98th New York Infantry
* 139th New York Infantry
1st Division
William T.H. Brooks, Brigadier General	2nd Brigade
Hiram Burnham, Brigadier General	
* 8th Connecticut Infantry
* 10th New Hampshire Infantry
* 13th New Hampshire Infantry
* 118th New York Infantry
1st Division
William T.H. Brooks, Brigadier General	3rd Brigade
Guy V. Henry, Colonel	
* 21st Connecticut Infantry
* 40th Massachusetts InfantryTemporarily attached from 10th Corps
* 92nd New York Infantry
* 58th Pennsylvania Infantry
* 188th Pennsylvania Infantry
2nd Division 
John H. Martindale, Brigadier General	1st Brigade
George J. Stannard, Brigadier General	
* 23rd Massachusetts Infantry
* 25th Massachusetts Infantry
* 27th Massachusetts Infantry
* 9th New Jersey Infantry
* 89th New York Infantry
* 55th Pennsylvania Infantry
2nd Division 
John H. Martindale, Brigadier General	2nd Brigade
Griffin A. Stedman (Jr.), Colonel	
* 11th Connecticut Infantry
* 8th Maine Infantry
* 2nd New Hampshire Infantry
* 12th New Hampshire Infantry
* 148th New York Infantry
3rd DivisionOrganized temporarily May 30, 1864, and consisted of troops previously known as the Second and Third Divisions of the Tenth Corps
Charles Devens (Jr.), Brigadier General
Adelbert Ames, Brigadier GeneralAssigned June 4, 1864, Brigadier General Devens being relieved on account of ill-health	1st Brigade
William B. Barton, Colonel	
* 47th New York Infantry
* 48th New York Infantry
* 115th New York Infantry
* 76th Pennsylvania Infantry
3rd DivisionOrganized temporarily May 30, 1864, and consisted of troops previously known as the Second and Third Divisions of the Tenth Corps
Charles Devens (Jr.), Brigadier General
Adelbert Ames, Brigadier GeneralAssigned June 4, 1864, Brigadier General Devens being relieved on account of ill-health	2nd Brigade
Jeremiah C. Drake, ColonelZina H. Robinson, Lieutenant ColonelAlexander Piper, ColonelAssigned June 5, 1864N. Martin Curtis, Colonel	
* 13th Indiana Infantry
* 9th Maine Infantry - Zina H. Robinson, Lieutenant Colonel
* 112th New York Infantry
* 169th New York Infantry
* 10th New York Heavy ArtilleryJoined June 5, 1864 (see: New York State Military Museum and Veterans Research Center - 10th Artillery Regiment)
3rd DivisionOrganized temporarily May 30, 1864, and consisted of troops previously known as the Second and Third Divisions of the Tenth Corps
Charles Devens (Jr.), Brigadier General
Adelbert Ames, Brigadier GeneralAssigned June 4, 1864, Brigadier General Devens being relieved on account of ill-health	3rd Brigade
Adelbert Ames, Brigadier GeneralHenry R. Guss, ColonelLouis Bell, Colonel	
* 4th New Hampshire Infantry
* 3rd New York Infantry
* 117th New York Infantry
* 142nd New York Infantry
* 97th Pennsylvania Infantry - Henry R. Guss, Colonel
 	Artillery Brigade
Samuel S. Elder, Captain	
* 1st United States Artillery / Battery B
* 4th United States Artillery / Battery L
* 5th United States Artillery / Battery A
</div>
* 79th New York InfantryNot originally listed on Dyer summary
* https://en.wikipedia.org/wiki/Cold_Harbor_Union_order_of_battle
== Confederate Troops ==
* https://en.wikipedia.org/wiki/Cold_Harbor_Confederate_order_of_battle
== Casualties ==
* Union loss: 1,905 killed, 10,570 wounded, 2,466 captured and missing = Total 14,931
== Notes ==
== Sources ==
* (Pages 608, 884, 940, 941)
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