The following Union Army units and commanders fought in the Second Battle of Petersburg (June 15–18, 1864) of the American Civil War. Order of battle compiled from the casualty returns.Official Records, Series I, Volume XL, Part 1, pages 218-238. The Confederate order of battle is listed separately.

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

General in Chief

LTG Ulysses S. Grant, commanding general, U.S. armies

Army of the James

MG Benjamin F. Butler

Headquarters units Naval Brigade

BG Charles K. Graham

Siege Artillery

Col Henry L. Abbot 1st Connecticut Heavy Artillery 13th New York Heavy Artillery, Companies A and H 3rd Pennsylvania Heavy Artillery, Company M

X Corps

BG Alfred H. Terry

Division Brigade Regiments and Others2nd Division

BG Adelbert Ames 1st Brigade

Col Newton Martin Curtis 3rd New York 112th New York 117th New York 142nd New York 2nd Brigade

Col William B. Barton 47th New York 48th New York 115th New York 76th Pennsylvania 3rd Brigade

Col Louis Bell 13th Indiana 9th Maine 4th New Hampshire 169th New York 97th Pennsylvania Artillery Brigade 5th Battery, New Jersey Artillery Battery D, 1st U.S. Artillery Battery E, 3rd U.S. Artillery Battery D, 4th U.S. Artillery

XVIII Corps

MG William F. Smith

Division Brigade Regiments and OthersFirst Division

BG William T. H. Brooks until June 18BG Gilman Marston 1st Brigade

BG Gilman MarstonCol Edgar M. Cullen 81st New York 96th New York 98th New York 139th New York 2nd Brigade

BG Hiram Burnham 8th Connecticut 10th New Hampshire 13th New Hampshire 118th New York 3rd Brigade

Col Guy V. Henry 21st Connecticut 40th Massachusetts 92nd New York 58th Pennsylvania 188th Pennsylvania Artillery Brigade

Cpt Samuel S. Elder Battery B, 1st U.S. Artillery Battery L, 4th U.S. Artillery Battery A, 5th U.S. ArtillerySecond Division

BG John H. Martindale 1st Brigade

BG George J. Stannard 23rd Massachusetts 25th Massachusetts 27th Massachusetts 9th New Jersey 10th New York Heavy Artillery 55th Pennsylvania 2nd Brigade

Col Griffin A. Stedman, Jr. 11th Connecticut 8th Maine 12th New Hampshire 148th New York 19th Wisconsin 3rd Brigade

Col Augustus A. Gibson 5th Maryland 2nd Pennsylvania Heavy Artillery Artillery Battery F, 1st Rhode Island LightThird Division

BG Edward W. Hincks 1st Brigade

BG Edward A. Wild 5th Massachusetts Colored Cavalry 1st U.S.C.T. Cavalry (dismounted) 1st U.S.C.T. 10th U.S.C.T. 2nd Brigade

Col Samuel A. Duncan 2nd U.S.C.T. Cavalry (dismounted) 4th U.S.C.T. 5th U.S.C.T. 6th U.S.C.T. 22nd U.S.C.T. 3rd Brigade

Col John Henry Holman 1st U.S.C.T. 5th Massachusetts Cavalry

Cavalry

Division Brigade Regiments and OthersCavalry Division

BG August V. Kautz 1st Brigade

Col Simon H. Mix (k) June 15 Col Robert M. West 3rd New York Cavalry 5th Pennsylvania Cavalry 2nd Brigade

Col Samuel P. Spear 1st District of Columbia Cavalry 11th Pennsylvania Cavalry Unassigned Companies F & G, 4th Massachusetts Cavalry 1st New York Mounted Rifles Artillery Brigade 1st Section, 4th Wisconsin Battery 2nd Section, 4th Wisconsin Battery

Army of the Potomac

MG George Meade

Headquarters units Provost Guard

BG Marsena R. Patrick 1st Massachusetts Cavalry, Companies C & D 80th New York 3rd Pennsylvania Cavalry 68th Pennsylvania 114th Pennsylvania

Artillery

BG Henry J. Hunt

Volunteer Engineer Brigade

BG Henry W. Benham 15th New York Engineers 50th New York Engineers Battalion U.S. Engineers

II Corps

MG Winfield S. Hancock relinquished command June 18 MG David B. Birney 1st Vermont Cavalry, Company M

Division Brigade Regiments and OthersFirst Division

BG Francis C. Barlow 1st Brigade

Col Nelson A. Miles 28th Massachusetts 26th Michigan 5th New Hampshire 2nd New York Heavy Artillery: Col Joseph Whistler 61st New York 81st Pennsylvania 140th Pennsylvania 183rd Pennsylvania 2nd Brigade(Irish Brigade)

Col Patrick Kelly (k) June 16

Cpt Richard Moroney 63rd New York 69th New York 88th New York 116th Pennsylvania 3rd Brigade

Col Clinton D. MacDougall 39th New York 52nd New York 57th New York 111th New York 125th New York 126th New York 4th Brigade

Col James A. Beaver (w) June 16

Ltc John Hastings 2nd Delaware 7th New York Heavy Artillery 64th New York 66th New York 53rd Pennsylvania 145th Pennsylvania 148th PennsylvaniaSecond Division

BG John Gibbon 1st Brigade

BG Byron R. Pierce (w) June 18 19th Maine 1st Company Sharpshooters 15th Massachusetts 19th Massachusetts 20th Massachusetts 1st Company Massachusetts Sharpshooters 7th Michigan 1st Minnesota Battalion 42nd New York 59th New York 82nd New York 184th Pennsylvania 36th Wisconsin: Col John A. Savage (k); Maj Clement Warner 2nd Brigade(Philadelphia Brigade)

Col John Fraser 152nd New York 69th Pennsylvania 72nd Pennsylvania 106th Pennsylvania 3rd Brigade

Col Thomas A. Smyth 14th Connecticut 1st Delaware 12th New Jersey 10th New York Battalion 108th New York 4th Ohio 8th Ohio 7th West Virginia 4th Brigade

Col John Ramsey (w) June 16 Col James Patrick McIvor 8th New York Heavy Artillery 155th New York 164th New York 170th New York 182nd New YorkThird Division

MG David B. BirneyBG Gershom Mott 1st Brigade

Col Thomas W. Egan (w) June 16Col Henry J. Madill 20th Indiana 17th 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 June 16

Maj Levi P. Duff June 16

Maj John Willian June 16

Col Robert McAllister 1st Massachusetts Heavy Artillery 5th Michigan 93rd New York 57th Pennsylvania 63rd Pennsylvania 105th Pennsylvania 1st United States Sharpshooters 3rd Brigade

BG Gershom Mott June 18Col Daniel Chaplin 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 71st New York 72nd New York 73rd New York 74th New York 120th New York 84th Pennsylvania Artillery Brigade

Col John C. Tidball 6th Battery, Maine Light 10th Battery, Massachusetts Light 1st Battery, New Hampshire Light Battery B, 1st New Jersey Light Battery G, 1st New York Light 3rd Battalion, 4th New York Heavy 11th Battery, New York Light 12th Battery, New York Light Battery F, 1st Pennsylvania Light Battery A, 1st Rhode Island Light Battery B, 1st Rhode Island Light Battery K, 4th U.S. Artillery Battery C & I, 5th United States

V Corps

MG Gouverneur K. Warren 12th New York Battalion

Division Brigade Regiments and OthersFirst Division

BG Charles Griffin 1st Brigade

Col Joshua L. Chamberlain (w) June 18Col William S. Tilton 121st Pennsylvania 142nd Pennsylvania 143rd Pennsylvania 149th Pennsylvania 150th Pennsylvania 187th Pennsylvania 2nd Brigade

Col Jacob B. Sweitzer 22nd Massachusetts 32nd Massachusetts: Col George L. Prescott (mw) 4th Michigan 62nd Pennsylvania 91st Pennsylvania 155th Pennsylvania 21st Pennsylvania Cavalry 3rd Brigade

BG Joseph J. Bartlett 20th Maine 18th Massachusetts 1st Michigan 16th Michigan 44th New York 83rd Pennsylvania 118th PennsylvaniaSecond Division

BG Romeyn B. Ayres 1st Brigade

Col Edgar M. Gregory 5th New York 140th New York 146th New York 4th U.S. Infantry Detachment, 10th U.S. Infantry Detachment, 11th U.S. Infantry 12th U.S. Infantry 14th U.S. Infantry 17th U.S. Infantry 2nd Brigade

Col Nathan T. Dushane 1st Maryland 4th Maryland 7th Maryland 8th Maryland Purnell (Maryland) Legion 3rd Brigade

Col J. Howard Kitching 6th New York Heavy Artillery Battery M, 15th New York Heavy Artillery: Cpt William D. Dickey (w)Third Division

BG Samuel W. Crawford 1st Brigade

Col Peter Lyle 16th Maine 13th Massachusetts 39th Massachusetts 104th New York 90th Pennsylvania 107th Pennsylvania 2nd Brigade

Col James L. Bates 12th Massachusetts 94th New York 97th New York 11th Pennsylvania 88th Pennsylvania 3rd Brigade

Col James Carle 190th Pennsylvania 191st PennsylvaniaFourth Division

BG Lysander Cutler 1st Brigade(Iron Brigade)

BG Edward S. Bragg 7th Indiana 19th Indiana 24th Michigan: Ltc Albert M. Edwards (in command June 18th), Cpt George W. Burchell (in command June 17th, (w) June 18th) 1st Battalion, New York Sharpshooters 6th Wisconsin: Ltc Rufus Dawes 7th Wisconsin: Ltc Mark Finnicum 2nd Brigade

Col William Hofmann 3rd Delaware 4th Delaware 76th New York 95th New York 147th New York 56th Pennsylvania 157th Pennsylvania Artillery Brigade

Col Charles S. Wainwright 3rd Massachusetts Light 5th Battery, Massachusetts Light 9th Battery, Massachusetts Light Battery B, 1st New York Light Battery C, 1st New York Light Battery D, 1st New York Light Battery E & Battery L, 1st New York Light Battery H, 1st New York Light 5th Battery, New York Light 15th Battery, New York Light Battery B, 1st Pennsylvania Light Battery B, 4th U.S. Artillery Battery D, 5th U.S. Artillery

VI Corps

MG Horatio G. Wright 8th Pennsylvania Cavalry, Company A

Division Brigade Regiments and OthersFirst Division

BG David A. Russell 1st Brigade

Col William H. Penrose 1st Delaware Dismounted Cavalry 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

Col Gideon Clark 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(attached to 2nd Division, XVIII Corps on June 18) 1st Brigade

BG Frank Wheaton 62nd New York 93rd Pennsylvania 98th Pennsylvania 102nd Pennsylvania 139th Pennsylvania 2nd Brigade(1st Vermont Brigade)

BG Lewis A. Grant 2nd Vermont 3rd Vermont 4th Vermont 5th Vermont 6th Vermont 11th Vermont Heavy Artillery 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 14th New Jersey 106th New York 151st New York 87th Pennsylvania 10th Vermont 2nd Brigade

Col Benjamin F. Smith 6th Maryland 9th New York Heavy Artillery 110th Ohio 122nd Ohio 126th Ohio 67th Pennsylvania 138th Pennsylvania Artillery Brigade

Col Charles H. Tompkins 4th Battery, Maine Light 5th Battery, Maine Light 1st Battery, Massachusetts Light Battery A, 1st New Jersey Light 1st Battery, New York Light 3rd Battery, New York Light 1st Battalion, 4th New York Heavy Battery H, 1st Ohio Light Battery C, 1st Rhode Island Light Battery E, 1st Rhode Island Light Battery G, 1st Rhode Island Light Battery E, 5th U.S. Artillery Battery M, 5th U.S. Artillery

IX Corps

MG Ambrose E. Burnside 8th United States

Division Brigade Regiments and OthersFirst Division

BG James Ledlie 1st Brigade

Col Jacob P. Gould 56th Massachusetts 57th Massachusetts 59th Massachusetts 2nd Brigade

Col Ebenezer Peirce until 17 June Ltc Joseph H. Barnes 3rd Maryland 21st Massachusetts 29th Massachusetts 179th New York 100th Pennsylvania 3rd Brigade

Col Elisha G. Marshall (w) June 17Col Benjamin G. BarneyEicher p.120. 14th New York Heavy Artillery 2nd Pennsylvania Provisional Heavy Artillery Artillery

Cpt John B. Eaton 2nd Maine Light Battery 14th Massachusetts Battery 27th Battery, New York ArtillerySecond Division

BG Robert B. Potter 1st Brigade

Col John I. Curtin (w) June 18Ltc Henry Pleasants 36th Massachusetts 58th Massachusetts 2nd New York Mounted Rifles 45th Pennsylvania 48th Pennsylvania 7th Rhode Island 2nd Brigade