The following Union Army units and commanders fought in the Battle of Cold Harbor (May 31–June 12, 1864) of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the army organization May 31, 1864,Official Records, Series I, Volume XXXVI, Part 1, pages 198-209 army organization May 26-June 3, 1864,Gordon C. Rhea, Cold Harbor: Grant and Lee May 26-June 3, 1864, The Order of Battle the casualty returnsOfficial Records, Series I, Volume XXXVI, Part 1, pages 153-165; Official Records, Series I, Volume XXXVI, Part 1, pages 166-183 and the reports.Official Records, Series I, Volume XXXVI, Part 1, pages 1162-1168Multiple commander names indicate command succession of command during the battle or the campaign.
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 mw = mortally wounded k = killed in action c = captured
Forces operating against Richmond May 31-June 5, 1864 LTG Ulysses S. Grant
Escort: 5th United States Cavalry, Companies B, F and K
Army of the Potomac
MG George 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:15th New York Engineers at Fort Monroe, Virginia; Brigadier General Henry W. Benham was not present (see: Benham's report) 50th New York Engineers Battalion United States Engineers
Guards and Orderlies: Independent Company Oneida (New York) Cavalry
Unattached: 22nd New York CavalryAt Port Royal, Virginia; joined Second Brigade, Third Division, Cavalry Corps on June 5, 1864 (see: Chapman's report)
II Corps
MG Winfield S. Hancock
Escort: 1st Vermont Cavalry, Company M
Division Brigade Regiments and OthersFirst Division
BG Francis C. Barlow 1st Brigade
Col Nelson A. Miles 26th Michigan 5th New HampshireArrived June 1, 1864 2nd New York Heavy Artillery 61st New York 81st Pennsylvania 140th Pennsylvania 183rd Pennsylvania 2nd Brigade
Col Richard Byrnes (mw)
Col Patrick Kelly 28th Massachusetts 63rd New York 69th New York 88th New York: Col Patrick Kelly 116th Pennsylvania 3rd Brigade
Col Clinton D. MacDougall 39th New York 52nd New YorkDetachment 7th New York attached 57th New YorkDetached at Port Royal, Virginia; rejoined brigade June 5, 1864 (see: Wilder's report) 111th New York 125th New York 126th New York 4th Brigade
Col John R. Brooke (w)
Col Orlando H. Morris (k)
Col Lewis O. Morris (k)
Col James A. Beaver 2nd Delaware 7th New York Heavy Artillery: Col Lewis O. Morris 64th New York 66th New York: Col Orlando H. Morris 53rd Pennsylvania 145th Pennsylvania 148th Pennsylvania: Col James A. BeaverSecond Division
BG John Gibbon 1st Brigade
Col H. Boyd McKeen (k)
Col Frank A. Haskell (k)
BG Byron R. PierceAssigned June 4, 1864 19th Maine 15th Massachusetts 19th Massachusetts 20th Massachusetts 1st Company Massachusetts Sharpshooters 7th Michigan 42nd New York 59th New York 82nd New York (battalion) 184th Pennsylvania 36th Wisconsin: Col Frank A. Haskell 2nd Brigade
BG Joshua T. Owen 152nd New York 69th Pennsylvania 71st Pennsylvania 72nd Pennsylvania 106th Pennsylvania 3rd Brigade
Col Thomas A. Smyth 14th Connecticut 1st Delaware 14th Indiana 12th New Jersey 10th New York Battalion 108th New York 4th Ohio 8th Ohio 7th West Virginia 4th Brigade
BG Robert O. Tyler (w)
Col James P. McIvor 8th New York Heavy Artillery 155th New York 164th New York 170th New York: Col James P. McIvor 182nd New York Provost Guard 2nd Company Minnesota SharpshootersThird Division
MG 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 Thomas R. Tannatt 4th Maine 17th MaineTransferred to First Brigade June 5, 1864 1st Massachusetts Heavy Artillery 3rd Michigan 5th Michigan 93rd New York 57th Pennsylvania 63rd Pennsylvania 105th Pennsylvania 1st United States Sharpshooters 3rd Brigade
BG Gershom Mott 1st Maine Heavy Artillery 16th Massachusetts 5th New Jersey 6th New Jersey 7th New Jersey 8th New Jersey 11th New Jersey 115th Pennsylvania 4th Brigade
Col William R. Brewster 11th Massachusetts 70th New York 71st New York 72nd New YorkAttached to the 120th New York (3 Companies) 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 Jersey Light, Battery B 1st New York Light, Battery G 4th New York HeavyThe 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 New York Light, 11th Battery New York Light, 12th Battery 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 BattalionTransferred to the 5th New York on June 2, 1864 (see: Official Records, Series I, Volume XXXVI, Part 3, page 453; New York State Military Museum and Veterans Research Center - 5th Veteran Infantry Regiment; New York State Military Museum and Veterans Research Center - 12th Infantry Regiment)
Division Brigade Regiments and OthersFirst Division
BG Charles Griffin 1st Brigade
BG Romeyn B. Ayres 5th New York 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 Massachusetts2nd Company Massachusetts Sharpshooters attached 32nd Massachusetts 4th Michigan 62nd Pennsylvania 21st Pennsylvania CavalryGordon 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) (Dismounted) 3rd Brigade
BG Joseph J. Bartlett 20th Maine 18th Massachusetts 29th MassachusettsTransferred to Ninth Corps on June 3, 1864 (see: Deane's report; Itinerary First Division, Ninth Army Corps; Official Records, Series I, Volume XXXVI, Part 3, page 543) 1st Michigan 16th MichiganBrady's Company Michigan Sharpshooters attached 44th New York 83rd Pennsylvania 118th PennsylvaniaSecond Division
BG Henry H. LockwoodRelieved June 2, 1864 (see: Official Records, Series I, Volume XXXVI, Part 3, pages 494 and 495)
BG Samuel W. CrawfordAssigned June 2, 1864 (see: Official Records, Series I, Volume XXXVI, Part 3, page 495) 1st Brigade
Col Peter Lyle 16th Maine 13th Massachusetts 39th Massachusetts 94th New York 104th New York 90th Pennsylvania 107th Pennsylvania 2nd Brigade
Col James L. Bates 12th Massachusetts 83rd New York 97th New York 11th Pennsylvania 88th Pennsylvania 3rd Brigade
Col Nathan D. Dushane 1st Maryland 4th Maryland 7th Maryland 8th Maryland Purnell (Maryland) LegionThird Division
BG Samuel W. Crawford 1st Brigade
Col Martin Davis Hardin 1st Pennsylvania ReservesLeft front June 1, 1864 (see: Pennsylvania in the Civil War - 1st Pennsylvania Reserves, 2nd Pennsylvania Reserves, 6th Pennsylvania Reserves and 13th Pennsylvania Reserves) 2nd Pennsylvania Reserves 6th Pennsylvania Reserves 7th Pennsylvania ReservesLeft front May 31, 1864 (see: Pennsylvania in the Civil War - 7th Pennsylvania Reserves, 5th Pennsylvania Reserves, 10th Pennsylvania Reserves and 12th Pennsylvania Reserves) 13th Pennsylvania Reserves 3rd Brigade
Col Joseph W. Fisher 5th Pennsylvania Reserves 10th Pennsylvania Reserves 12th Pennsylvania Reserves Heavy Artillery BrigadeTransferred to Second Division June 2, 1864
Col J. Howard Kitching 6th New York Heavy Artillery 15th New York Heavy Artillery, 1st and 3rd BattalionsFourth Division
BG Lysander Cutler 1st Brigade
Col William W. Robinson 7th Indiana 19th Indiana 24th Michigan: Ltc William Wight, Maj Albert M. Edwards 1st Battalion New York Sharpshooters 6th Wisconsin 7th Wisconsin 2nd Brigade
Col William Hofmann 3rd Delaware 4th Delaware 46th New YorkTransferred to IX Corps on June 4, 1864 (see: Cutcheon's and Serviere's report) 76th New York 95th New York 147th New York 56th Pennsylvania 157th Pennsylvania 3rd Brigade
Col Edward S. Bragg 121st Pennsylvania 142nd Pennsylvania 143rd Pennsylvania 149th Pennsylvania 150th Pennsylvania Provost Guard 2nd Wisconsin Artillery Brigade
Col Charles S. Wainwright Massachusetts Light, 3rd Battery Massachusetts Light, 5th Battery Massachusetts Light, 9th Battery 1st New York Light, Battery B 1st New York Light, Battery C 1st New York Light, Battery D 1st New York Light, Batteries E and L 1st New York Light, Battery H New York Light, 15th Battery 1st Pennsylvania Light, Battery B 4th United States, Battery B 5th United States, Battery D
VI Corps
MG Horatio G. Wright
Escort: 8th Pennsylvania Cavalry, Company A
Division Brigade Regiments and OthersFirst Division
BG David A. Russell 1st Brigade
Col William H. Penrose 1st New JerseyOrdered home for muster-out June 4, 1864 3rd New Jersey 4th New Jersey 10th New Jersey 15th New Jersey 2nd Brigade
BG Emory Upton 2nd Connecticut Heavy Artillery 5th Maine 121st New York 95th Pennsylvania 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 23rd Pennsylvania 82nd PennsylvaniaSecond Division
BG Thomas H. Neill 1st Brigade
BG Frank Wheaton 62nd New York 93rd Pennsylvania 98th Pennsylvania 102nd Pennsylvania 139th Pennsylvania 2nd Brigade
BG 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 IslandThird Division
BG James B. Ricketts 1st Brigade
Col William S. Truex (w)
Ltc Caldwell K. Hall
Col John W. SchallAssumed command June 2, 1864 and wounded June 3, 1864 (w)
Ltc Caldwell K. Hall 14th New Jersey: Ltc Caldwell K. Hall 106th New York 151st New York 87th Pennsylvania 10th Vermont 2nd Brigade
Col Benjamin F. Smith 6th Maryland 9th New York Heavy Artillery, 1st and 3rd Battalions 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) Massachusetts Light, 1st Battery (A) 1st New Jersey Light, Battery A New York Light, 1st Battery New York Light, 3rd Battery 9th New York Heavy, 2nd Battalion 1st Ohio Light, Battery H 1st Rhode Island Light, Battery C 1st Rhode Island Light, Battery E 1st Rhode Island Light, Battery G 5th United States, Battery E 5th United States, Battery M
IX Corps
MG Ambrose E. Burnside
General Staff: Chief of Staff: MG John G. Parke Chief of Artillery: Ltc J. Albert Monroe
Provost Guard: 8th United States