Second Battle of Petersburg order of battle: Union explained

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.^[1] 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

See main article: General in Chief. LTG Ulysses S. Grant, commanding general, U.S. armies

Army of the James

See main article: 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

See main article: X Corps (Union Army). BG Alfred H. Terry

width=25%	Division	width=25%	Brigade	Regiments and Others
2nd 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

See main article: XVIII Corps (Union Army). MG William F. Smith

width=25%	Division	width=25%	Brigade	Regiments and Others
First Division BG William T. H. Brooks until June 18 BG Gilman Marston	1st Brigade BG Gilman Marston Col 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 United States Battery L, 4th United States Battery A, 5th United States
Second 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 Light
Third Division BG Edward W. Hincks		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

width=25%	Division	width=25%	Brigade	Regiments and Others
Cavalry 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

See main article: 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

II Corps

See main article: II Corps (Union Army). MG Winfield S. Hancock relinquished command June 18
MG David B. Birney

1st Vermont Cavalry, Company M

width=25%	Division	width=25%	Brigade	Regiments and Others
First 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 Pennsylvania
Second 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 York
Third Division MG David B. Birney BG Gershom Mott	1st Brigade Col Thomas W. Egan (w) June 16 Col 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 18 Col 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 United States Battery C & Battery I, 5th United States

V Corps

See main article: V Corps (Union Army). MG Gouverneur K. Warren

12th New York Battalion

width=25%	Division	width=25%	Brigade	Regiments and Others
First Division BG Charles Griffin	1st Brigade Col Joshua L. Chamberlain (w) June 18 Col 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 Pennsylvania
Second 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 Pennsylvania
Fourth Division BG Lysander Cutler	1st Brigade (Iron Brigade) BG Edward S. Bragg	7th Indiana 19th Indiana 24th Michigan 1st Battalion, New York Sharpshooters 6th Wisconsin 7th Wisconsin
	2nd Brigade Col J. 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 United States Battery D, 5th United States

VI Corps

See main article: VI Corps (Union Army). MG Horatio G. Wright

8th Pennsylvania Cavalry, Company A

width=25%	Division	width=25%	Brigade	Regiments and Others
First 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 Pennsylvania
Second 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 Island
Third Division BG James B. Ricketts		14th New Jersey 106th New York 151st New York 87th Pennsylvania 10th Vermont
Third Division BG James B. Ricketts	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 United States Battery M, 5th United States

IX Corps

See main article: IX Corps (Union Army). MG Ambrose E. Burnside

8th United States

width=25%	Division	width=25%	Brigade	Regiments and Others
First 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 17 Col Benjamin G. Barney^[2]	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 Artillery
Second Division BG Robert B. Potter	1st Brigade Col John I. Curtin (w) June 18 Ltc Henry Pleasants	36th Massachusetts 58th Massachusetts 2nd New York Mounted Rifles 45th Pennsylvania 48th Pennsylvania 7th Rhode Island
	2nd Brigade Col Simon Goodell Griffin	2nd Maryland 31st Maine 32nd Maine 6th New Hampshire 9th New Hampshire 11th New Hampshire 17th Vermont
	Artillery	11th Massachusetts Battery 19th New York Battery
Third Division BG Orlando B. Willcox	1st Brigade Col John F. Hartranft	8th Michigan 27th Michigan 109th New York 13th Ohio Cavalry (dismounted) 51st Pennsylvania 37th Wisconsin 38th Wisconsin
	2nd Brigade Col Benjamin C. Christ (w) June 17 Col William Raultson (w) June 18 Ltc George Travers (w) June 18 Col Walter C. Newberry	1st Michigan Sharpshooters 2nd Michigan 20th Michigan 24th New York Dismounted Cavalry 60th Ohio 50th Pennsylvania
	Artillery	7th Maine Battery 34th New York Battery
Fourth Division BG Edward Ferrero	1st Brigade Col Joshua K. Sigfried	27th U.S. Colored Troops 30th U.S. Colored Troops 39th U.S. Colored Troops 43rd U.S. Colored Troops
	2nd Brigade Col Henry Goddard Thomas	19th U.S. Colored Troops 23rd U.S. Colored Troops 31st U.S. Colored Troops
	Artillery	Battery D, Pennsylvania Independent Light 3rd Vermont Battery

Cavalry Corps

See main article: Cavalry Corps (Union Army). MG Philip H. Sheridan

width=25%	Division	width=25%	Brigade	Regiments and Others
First Division BG Alfred T. A. Torbert	1st Brigade (Wolverine 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 BG Wesley Merritt	19th New York (1st Dragoon) 6th Pennsylvania 1st United States 2nd United States 5th United States
Second Division BG David McMurtrie Gregg	1st Brigade BG Henry E. Davies, Jr.	1st Massachusetts 1st New Jersey 10th New York 6th Ohio 1st Pennsylvania
Second Division BG David McMurtrie Gregg	2nd Brigade Col John Irvin Gregg	1st Maine 2nd Pennsylvania 4th Pennsylvania 8th Pennsylvania 13th Pennsylvania 16th Pennsylvania
Third Division BG James H. Wilson	1st Brigade Col John Baillie McIntosh	1st Connecticut 3rd New Jersey 2nd New York 5th New York 2nd Ohio 18th Pennsylvania
Third Division BG James H. Wilson	2nd Brigade Col George H. Chapman	3rd Indiana 8th New York 1st Vermont
Horse Artillery	1st Brigade Cpt James M. Robertson	6th New York Battery Batteries B & L, 2nd United States Battery D, 2nd United States Battery M, 2nd United States Battery A, 4th United States Battery C & Battery E, 4th United States
Horse Artillery	2nd Brigade Cpt Dunbar R. Ransom	Batteries E and G, 1st United States Batteries H and I, 1st United States Battery K, 1st United States Battery A, 2nd United States

References

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.
Eicher, John H., and Eicher, David J., Civil War High Commands, Stanford University Press, 2001, .

Notes and References

Official Records, Series I, Volume XL, Part 1, pages 218-238.
Eicher p.120.