Siege of Petersburg
Third Offensive Order of Battle
Union Army
July 1-31, 1864
Note: This order of battle is taken from The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), pp. 250-268 and The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 3 (Serial Number 82), pp. 728-742 unless otherwise noted. For detailed citations regarding commanders, unit strengths, weapons, and other details, click on the unit pages linked below.
Union Armies: Lieutenant General Ulysses S. Grant
Escort, Union Army (at City Point, Va.)
Army of the Potomac: Major General George G. Meade
HQ, Army of the Potomac
Guards & Orderlies, Army of the Potomac
Signal Corps, Army of the Potomac: Captain Benjamin F. Fisher
Provost Guard, Army of the Potomac: Brigadier General Marsena R. Patrick
1st Indiana Cavalry (Cos. I and K)
80th New York Infantry (20th Militia)
25th New York Cavalry (dismounted) (July 1-7, 1864) (Left for Washington, DC on July 7)
Engineers, Army of the Potomac
United States Engineer Battalion
Volunteer Engineer Brigade, Army of the Potomac: Brigadier General Henry W. Benham
15th New York Engineers (5 cos.)
50th New York Engineers (9 cos)
Artillery, Army of the Potomac: Brigadier General Henry J. Hunt
Reserve Artillery, Army of the Potomac
Note: The artillery batteries listed below were originally part of VI Corps, but were left behind when that unit was sent to Washington, D.C.
4th New York Heavy Artillery (July 13-31, 1864)
Maine Light Artillery, 4th Battery (D) (July 10-31, 1864)
1st New Jersey Light Artillery, 1st Battery (A) (July 10-31, 1864)
New York Light Artillery, 3rd Battery (July 10-31, 1864)
1st Ohio Light Artillery, Battery H (July 10-31, 1864)
1st Rhode Island Light Artillery, Battery E (July 10-31, 1864)
5th United States Artillery, Battery E (July 10-31, 1864)
15th New York Heavy Artillery, Co. F (constituted the Artillery Park)
II Corps, Army of the Potomac: Major General Winfield S. Hancock
Escort, II Corps, Army of the Potomac
Engineers, II Corps, Army of the Potomac:
50th New York Engineers (1st Bn)
First Division, II Corps, Army of the Potomac: Brigadier General Francis C. Barlow (July 1-29, 1864); Brigadier General Nelson A. Miles (July 29-31, 1864)
First Brigade, First Division, II Corps, Army of the Potomac: Brigadier General Nelson A. Miles (July 1-29, 1864); Colonel James C. Lynch (of the 183rd PA) (July 29-31, 1864)
Consolidated (2nd & 3rd) Brigade, First Division, II Corps, Army of the Potomac: Colonel Clinton D. MacDougall (of the 111th NY) (July 1-3, 1864); Colonel Levin Crandell (of the 125th NY) (July 3-31, 1864)
7th New York Veteran Infantry (July 22(?)-31, 1864)
Fourth Brigade, First Division, II Corps, Army of the Potomac: Lieutenant Colonel John Hastings (of the 7th NY HA) (July 1-25, 1864); Lieutenant Colonel K. Oscar Broady (of the 61st NY) (July 25-31, 1864)
Second Division, II Corps, Army of the Potomac: Major General John Gibbon (July 1-31, 1864); Colonel Thomas A. Smyth (of the 1st DE) (July 31, 1864)
Provost Guard, Second Division, II Corps, Army of the Potomac
2nd Company Minnesota Sharpshooters
First Brigade, Second Division, II Corps, Army of the Potomac: Lieutenant Colonel Francis E. Pierce (of the 108th NY)
15th Massachusetts Infantry (July 1-27, 1864) (Left the front July 12, mustered out July 28, veterans and recruits att. to 20th MA on July 27, 1864)
First Company Andrew (Massachusetts) Sharpshooters (att. to 15th MA until around July 12, 1864) (att. to 19th MA July 12-31, 1864)
42nd New York Infantry (July 1-13, 1864) (mustered out July 13, 1864, all remaining troops att. to 82nd NY which became part of 52nd NY)
82nd New York Infantry (July 1-10(?), 1864) (mustered out June 25, 1865, veterans and recruits att. to 59th NY on July 10(?), 1864)
Second Brigade, Second Division, II Corps, Army of the Potomac: Colonel James P. McIvor (of the 170th NY) (July 1-14, 1864); Colonel Mathew Murphy (of the 182nd NY) (July 14-31, 1864)
182nd New York Infantry (69th NY National Guard Artillery)
Third Brigade, Second Division, II Corps, Army of the Potomac: Colonel Thomas A. Smyth (of the 1st DE) (July 1-19, 1864 and July 22-31, 1864); Lieutenant Colonel Henry A. Cook (of the 72nd PA) (July 19-22, 1864); Lieutenant Colonel Samuel A. Moore (of the 14th CT) (July 31, 1864)
72nd Pennsylvania Infantry (July 1-19, 1864) (veterans and recruits att. to 183rd PA in 1/1/II/AotP)
Third Division, II Corps, Army of the Potomac: Major General David B. Birney (July 1-23, 1864); Brigadier General Gershom Mott (July 23-31, 1864)
First Brigade, Third Division, II Corps, Army of the Potomac: Colonel Henry J. Madill (of the 141st PA) (July 1-12, 1864); Brigadier General P. Regis De Trobriand (July 12-31, 1864)
1st Maine Heavy Artillery (July 28-31, 1864)
4th New York Heavy Artillery (1st Bn) (July 1-13, 1864) (moved to Arty/AotP on July 13, 1864)
141st Pennsylvania Infantry (July 1-28, 1864) (moved to 2/3/II/AotP on July 28, 1864)
2nd United States Sharpshooters
Second Brigade, Third Division, II Corps, Army of the Potomac: Brigadier General Byron R. Pierce (July 1-26, 1864); Colonel Daniel Chaplin (of the 1st ME HA) (July 26-28, 1864); Colonel Henry J. Madill (of the 141st PA) (July 28-31, 1864)
1st Massachusetts Heavy Artillery
4th New York Heavy Artillery (2nd Bn) (July 1-13, 1864) (moved to Arty/AotP on July 13, 1864)
141st Pennsylvania Infantry (July 28-31, 1864)
1st United States Sharpshooters
Third Brigade, Third Division, II Corps, Army of the Potomac: Brigadier General Gershom Mott (July 1-(16?), 1864); Colonel Robert McAllister (of the 11th NJ) (July (16?)-31, 1864)
1st Maine Heavy Artillery (July 1-28, 1864) (moved to 1/3/II/AotP on July 28, 1864)
11th Massachusetts Infantry (July 3-31, 1864)
16th Massachusetts Infantry (July 1-11, 1864) (Left the front July 11, veterans and recruits att. to 11th MA on July 11, 1864)
71st New York Infantry (July 3-7, 1864) (Veterans and recruits att. to 120th NY on July 7, 1864)
120th New York Infantry (July 3-31, 1864)
Fourth Brigade, Third Division, II Corps, Army of the Potomac (broken up July 3, 1864 and its regiments assigned to 3/3/II/AotP): Unit and Commander not listed due to breakup early in July, but probably the highest ranking commander of the three regiments listed below
11th Massachusetts Infantry (July 1-3, 1864)
71st New York Infantry (July 1-3, 1864)
120th New York Infantry (July 1-3, 1864)
Artillery Brigade, II Corps, Army of the Potomac: Major John G. Hazard
Maine Light Artillery, 6th Battery (F)
Massachusetts Light Artillery, 10th Battery
New Hampshire Light Artillery, 1st Battery (1st NH Heavy Arty, Btty M)
1st New Jersey Light Artillery, 2nd Battery (B)
New Jersey Light Artillery, 3rd Battery (C)
1st New York Light Artillery, Battery G
4th New York Heavy Artillery (3rd Bn) (July 1-13, 1864) (moved to Arty/AotP on July 13, 1864)
4th New York Heavy Artillery, Battery D
4th New York Heavy Artillery, Battery L
New York Light Artillery, 11th Battery
New York Light Artillery, 12th 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, Batteries C and I
V Corps, Army of the Potomac: Major General Gouverneur K. Warren
HQ, V Corps, Army of the Potomac
1st Michigan Cavalry (detachment)
Provost Guard, V Corps, Army of the Potomac
5th New York Veteran Infantry (Cos. E & F)
First Division, V Corps, Army of the Potomac: Brigadier General Charles Griffin (July 1-21, 1864); Brigadier General Joseph J. Bartlett (July 21-31, 1864)
First Brigade, First Division, V Corps, Army of the Potomac: Colonel William S. Tilton (of the 22nd MA)
Second Brigade, First Division, V Corps, Army of the Potomac: Colonel Jacob B. Sweitzer (of the 62nd PA) (July 1-2, 1864); Colonel Edgar M. Gregory (of the 91st PA) (July 3-31, 1864)
22nd Massachusetts Infantry (2nd Co. Massachusetts Sharpshooters attached)
62nd Pennsylvania Infantry (July 1-2, 1864) (Veterans and recruits att. to 155th PA on July 2, 1864)
Third Brigade, First Division, V Corps, Army of the Potomac: Brigadier General Joseph J. Bartlett (July 1-21, 1864); Colonel Norval E. Welch (of the 16th MI) (July 21-31, 1864)
16th Michigan Infantry (Brady’s Co. Michigan Sharpshooters attached)
Second Division, V Corps, Army of the Potomac: Brigadier General Romeyn B. Ayres
Provost Guard, Second Division, V Corps, Army of the Potomac
2nd United States Infantry, Co. C (need a source)
First Brigade, Second Division, V Corps, Army of the Potomac: Brigadier General Joseph Hayes
10th United States Infantry (3 cos.)
11th United States Infantry (6 cos.)
Second Brigade, Second Division, V Corps, Army of the Potomac: Colonel Nathan T. Dushane (of the 1st MD US)
Purnell Maryland Legion Infantry (US)
Third Brigade, Second Division, V Corps, Army of the Potomac: Colonel J. Howard Kitching (of the 6th NY HA)
Third Division, V Corps, Army of the Potomac: Brigadier General Samuel W. Crawford
First Brigade, Third Division, V Corps, Army of the Potomac: Colonel Peter Lyle (of the 90th PA)
13th Massachusetts Infantry (July 1-13, 1864) (Veterans and recruits att. to 39th MA on July 13, 1864)
Second Brigade, Third Division, V Corps, Army of the Potomac: Brigadier General Henry Baxter (July 1-(?), 1864); Colonel Charles Wheelock (of the 97th NY) (July (?)-31, 1864)
Third Brigade, Third Division, V Corps, Army of the Potomac: Colonel James Carle (of the 191st PA) (July 1-26, 1864); Colonel William R. Hartshorne (of the 190th PA) (July 26-31, 1864)
Fourth Division, V Corps, Army of the Potomac: Brigadier General Lysander Cutler
Provost Guard, Fourth Division, V Corps, Army of the Potomac
2nd Wisconsin Infantry (Independent Battalion Wisconsin Infantry) (2 cos.)
First Brigade, Fourth Division, V Corps, Army of the Potomac: Brigadier General Edward S. Bragg
1st Battalion New York Sharpshooters
Second Brigade, Fourth Division, V Corps, Army of the Potomac: Colonel J. William Hofmann (of the 56th PA)
Artillery Brigade, V Corps, Army of the Potomac: Colonel Charles S. Wainwright
Massachusetts Light Artillery, 3rd Battery (C)
Massachusetts Light Artillery, 5th Battery (E)
Massachusetts Light Artillery, 9th 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
New York Light Artillery, 15th Battery
1st Pennsylvania Light Artillery, Battery B
4th United States Artillery, Battery B
5th United States Artillery, Batteries D and G
VI Corps, Army of the Potomac (The Third Division left the front of Petersburg on July 6, 1864 and the First and Second Divisions left on July 10, 1864, all bound for Washington, D. C.): Major General Horatio G. Wright
HQ, VI Corps, Army of the Potomac
8th Pennsylvania Cavalry, Co. A
First Division, VI Corps, Army of the Potomac: Brigadier General David A. Russell
First Brigade, First Division, VI Corps, Army of the Potomac: Colonel William H. Penrose (of the 15th NJ)
1st Delaware Cavalry (dismounted)
15th New Jersey Infantry (Remnants of 2nd NJ and 3rd NJ temporarily attached)
Second Brigade, First Division, VI Corps, Army of the Potomac: Brigadier General Emory Upton
2nd Connecticut Heavy Artillery
65th New York Infantry (July 6-31, 1864)
Third Brigade, First Division, VI Corps, Army of the Potomac: Lieutenant Colonel Gideon Clark (of the 119th PA) (July 1-6, 1864); Colonel Oliver Edwards (of the 37th MA) (July 7-31, 1864)
37th Massachusetts Infantry (July 6-31, 1864)
23rd Pennsylvania Infantry (July 6-31, 1864)
82nd Pennsylvania Infantry (July 6-31, 1864)
Fourth Brigade, First Division, VI Corps, Army of the Potomac (disbanded July 6, 1864 and its regiments assigned elsewhere): Unit and Commander not listed due to breakup early in July, but probably Colonel Joseph E. Hamblin (of the 65th NY) (July 1-6, 1864)
65th New York Infantry (July 1-6, 1864) (moved to 2/1/VI/AotP)
67th New York Infantry (July 1-4, 1864) (Veterans and recruits att. to 65th NY on July 13, 1864)
122nd New York Infantry (July 1-6, 1864) (moved to 3/2/VI/AotP)
23rd Pennsylvania Infantry (July 1-6, 1864) (moved to 3/1/VI/AotP)
82nd Pennsylvania Infantry (July 1-6, 1864) (moved to 3/1/VI/AotP)
Second Division, VI Corps, Army of the Potomac: Brigadier General George W. Getty
First Brigade, Second Division, VI Corps, Army of the Potomac: Brigadier General Frank Wheaton
Second Brigade, Second Division, VI Corps, Army of the Potomac: Brigadier General Lewis A. Grant
11th Vermont Infantry (1st Vermont Heavy Artillery)
Third Brigade, Second Division, VI Corps, Army of the Potomac: Colonel Daniel D. Bidwell (of the 49th NY)
122nd New York Infantry (July 6-31, 1864)
Fourth Brigade, Second Division, VI Corps, Army of the Potomac (disbanded July 6, 1864 and its regiments assigned elsewhere): Unit and Commander not listed due to breakup early in July, but almost certainly Colonel Oliver Edwards (of the 37th MA) (July 1-6, 1864)
37th Massachusetts Infantry (July 1-6, 1864) (A detachment of the 2nd Rhode Island Infantry attached)
Third Division, VI Corps, Army of the Potomac: Brigadier General James B. Ricketts
First Brigade, Third Division, VI Corps, Army of the Potomac: Colonel William S. Truex (of the 14th NJ)
Second Brigade, Third Division, VI Corps, Army of the Potomac: Colonel Benjamin F. Smith (of the 126th OH)
9th New York Heavy Artillery, 1st and 3rd Bns.
Artillery Brigade, VI Corps, Army of the Potomac (Half of the unit went with VI Corps to Washington, D. C. on July 10, 1864, the other half remained at Petersburg and formed part of the Artillery Reserve): Not listed but almost certainly Colonel Charles H. Tompkins
Maine Light Artillery, 4th Battery (D) (July 1-9, 1864) (moved to Arty/AotP on July 9, 1864)
Maine Light Artillery, 5th Battery (E)
Massachusetts Light Artillery, 1st Battery (A)
1st New Jersey Light Artillery, 1st Battery (A) (July 1-9, 1864) (moved to Arty/AotP on July 9, 1864)
New York Light Artillery, 1st Battery
New York Light Artillery, 3rd Battery (July 1-9, 1864) (moved to Arty/AotP on July 9, 1864)
9th New York Heavy Artillery (2nd Bn)
1st Ohio Light Artillery, Battery H (July 1-9, 1864) (moved to Arty/AotP on July 9, 1864)
1st Rhode Island Light Artillery, Battery C
1st Rhode Island Light Artillery, Battery E (July 1-9, 1864) (moved to Arty/AotP on July 9, 1864)
1st Rhode Island Light Artillery, Battery G
5th United States Artillery, Battery E (July 1-9, 1864) (moved to Arty/AotP on July 9, 1864)
5th United States Artillery, Battery M
IX Corps, Army of the Potomac: Major General Ambrose E. Burnside
HQ, IX Corps, Army of the Potomac
3rd New Jersey Cavalry (detachment)
Provost Guard, IX Corps, Army of the Potomac
First Division, IX Corps, Army of the Potomac: Brigadier General James H. Ledlie
First Brigade, First Division, IX Corps, Army of the Potomac: Colonel Jacob P. Gould (of the 59th MA) (July 1-21, 1864); Brigadier General William F. Bartlett (July 21-30, 1864) (captured in the Crater July 30, 1864); Lieutenant Colonel Joseph H. Barnes (of the 29th MA) (July 30-31, 1864)
29th Massachusetts Infantry (July 23-31, 1864)
Second Brigade, First Division, IX Corps, Army of the Potomac: Colonel Ebenezer W. Peirce (of the 29th MA) (July 1-(23?), 1864); Colonel Elisha G. Marshall (of the 14th NY HA) (July (23?)-30, 1864) (Captured at the Crater July 30, 1864); Lieutenant Colonel Gilbert P. Robinson (of the 3rd MD US) (July 30-31, 1864)
29th Massachusetts Infantry (July 1-23, 1864) (moved to 1/1/IX/AotP on July 23, 1864)
2nd Pennsylvania (Provisional) Heavy Artillery
Second Division, IX Corps, Army of the Potomac: Brigadier General Robert B. Potter
Acting Engineers, Second Division, IX Corps, Army of the Potomac
51st New York Infantry (July 1-2, 1864)
7th Rhode Island Infantry (July 2-31, 1864)
First Brigade, Second Division, IX Corps, Army of the Potomac: Lieutenant Colonel Henry Pleasants (of the 48th PA) (July 1-4, 1864); Colonel Zenas R. Bliss (of the 7th RI) (July 4-11, 1864 and July 25-31, 1864); Colonel William H. P. Steere (of the 4th RI) (July 11-25, 1864)
2nd New York Mounted Rifles (dismounted)
51st New York Infantry (July 2-31, 1864)
4th Rhode Island Infantry (July 3-31, 1864)
7th Rhode Island Infantry (July 1-2, 1864)
Second Brigade, Second Division, IX Corps, Army of the Potomac: Brigadier General Simon G. Griffin
Third Division, IX Corps, Army of the Potomac: Brigadier General Orlando B. Willcox
Acting Engineers, Third Division, IX Corps, Army of the Potomac
First Brigade, Third Division, IX Corps, Army of the Potomac: Brigadier General John F. Hartranft
27th Michigan Infantry (1st and 2nd Companies Michigan Sharpshooters attached)
13th Ohio Cavalry (dismounted)
38th Wisconsin Infantry (5 cos.)
Second Brigade, Third Division, IX Corps, Army of the Potomac: Colonel William Humphrey (of the 2nd MI)
24th New York Cavalry (dismounted)
60th Ohio Infantry (9th and 10th Companies Ohio Sharpshooters attached)
Fourth Division, IX Corps, Army of the Potomac: Brigadier General Edward Ferrero (July 1-21, 1864 and July 29-31, 1864); Brigadier General Julius White (July 21 to 29, 1864)
First Brigade, Fourth Division, IX Corps, Army of the Potomac: Colonel Joshua K. Sigfried (of the 48th PA)
Second Brigade, Fourth Division, IX Corps, Army of the Potomac: Colonel Henry G. Thomas (of the 19th USCT)
28th USCT Infantry (temporarily attached to 19th USCT for period of time in July, could it have to do with the Crater?)
Artillery Brigade, IX Corps, Army of the Potomac: Lieutenant Colonel J. Albert Monroe
Maine Light Artillery, 2nd Battery (B)
Maine Light Artillery, 3rd Battery (C) (July 9-31, 1864)
Maine Light Artillery, 7th Battery (G)
Massachusetts Light Artillery, 11th Battery
Massachusetts Light Artillery, 14th Battery
New York Light Artillery, 19th Battery
New York Light Artillery, 27th Battery
New York Light Artillery, 34th Battery
Pennsylvania Light Artillery, Battery D
Vermont Light Artillery, 3rd Battery
Cavalry Corps, Army of the Potomac: Major General Philip H. Sheridan
Escort, Cavalry Corps, Army of the Potomac
First Division, Cavalry Corps, Army of the Potomac: Brigadier General Alfred T. A. Torbert
First Brigade, First Division, Cavalry Corps, Army of the Potomac: Brigadier General George A. Custer; Colonel Russell A. Alger (of the 5th MI Cav) (dates not stated)
Second Brigade, First Division, Cavalry Corps, Army of the Potomac: Colonel Thomas C. Devin (of the 6th NY Cav)
Reserve Brigade, First Division, Cavalry Corps, Army of the Potomac: Brigadier General Wesley Merritt
19th New York Cavalry (1st Dragoons)
Second Division, Cavalry Corps, Army of the Potomac: Brigadier General David McM. Gregg
First Brigade, Second Division, Cavalry Corps, Army of the Potomac: Brigadier General Henry E. Davies, Jr. (July 1-30, 1864); Colonel William Stedman (of the 6th OH Cav) (July 30-31, 1864)
Second Brigade, Second Division, Cavalry Corps, Army of the Potomac: Colonel J. Irvin Gregg (of the 16th PA Cav)
Third Division, Cavalry Corps, Army of the Potomac: Brigadier General James H. Wilson
First Brigade, Third Division, Cavalry Corps, Army of the Potomac: Brigadier General John B. McIntosh
Second Brigade, Third Division, Cavalry Corps, Army of the Potomac: Brigadier General George H. Chapman
Horse Artillery Brigade, Cavalry Corps, Army of the Potomac: Captain James M. Robertson
1st United States Artillery, Batteries H and I (July 1-27, 1864) (ordered to Washington, D. C. around July 27, 1864)
1st United States Artillery, Battery K (July 1-9, 1864) (ordered to Washington, D. C. on July 9, 1864)
2nd United States Artillery, Battery A
2nd United States Artillery, Batteries B and L
2nd United States Artillery, Battery D
2nd United States Artillery, Battery M
3rd United States Artillery, Battery C
4th United States Artillery, Batteries C and E
Department of Virginia and North Carolina: Major General Benjamin F. Butler
Army of the James: Major General Benjamin F. Butler
HQ, Army of the James
1st New York Mounted Rifles (detachment)
Signal Corps, Army of the James: Captain Lemuel B. Norton
Engineers, Army of the James
Unattached, Army of the James
37th New Jersey Infantry (listed as Unattached, 3rd Division, X Corps in early July 1864) (Used for fatigue duty at Point of Rocks, Va., and at Redoubt Converse on Spring Hill, near Appomattox River)
36th USCT Infantry (July 3-31, 1864) (arrived from Point Lookout, MD on July 3, 1864)
37th USCT Infantry (listed as Unattached, X Corps in early July 1864)
1st New York Mounted Rifles (July ?-31, 1864)
2nd United States Colored Artillery, Battery B (July 1-7, 1864) (Ordered to Portsmouth, VA on July 7, 1864)
1st Pennsylvania Light Artillery, Battery A
Siege Artillery, Army of the James: Colonel Henry L. Abbot (of the 1st CT HA)
1st Connecticut Heavy Artillery
13th New York Heavy Artillery, Companies A and H
3rd Pennsylvania Heavy Artillery, Company M
Pontoniers, Army of the James
Massachusetts Heavy Artillery, 13th Company
Naval Brigade, Army of the James: Brigadier General Charles K. Graham
13th New York Heavy Artillery, Company I
13th New York Heavy Artillery, Company K
13th New York Heavy Artillery, Company L
13th New York Heavy Artillery, Company M (maybe, need source)
3rd Pennsylvania Heavy Artillery, Company A
3rd Pennsylvania Heavy Artillery, Company B
3rd Pennsylvania Heavy Artillery, Company F
3rd Pennsylvania Heavy Artillery, Company G
X Corps, Army of the James: Brigadier General William T. H. Brooks (July 1-19, 1864); Brigadier General Alfred H. Terry (July 19-23, 1864); Major General David B. Birney (July 23-31, 1864)
Cavalry, X Corps, Army of the James
4th Massachusetts Cavalry (1st and 3rd Bns)
First Division, X Corps, Army of the James: Brigadier General Alfred H. Terry (July 1-19, 1864 and July 23-31, 1864); Brigadier General Robert S. Foster (July 19-23, 1864)
First Brigade, First Division, X Corps, Army of the James: Colonel Joshua B. Howell (of the 85th PA) (July 1-29, 1864); Colonel Francis B. Pond (of the 62nd OH) (July 29-31, 1864)
Second Brigade, First Division, X Corps, Army of the James: Colonel Joseph R. Hawley (of the 7th CT)
16th New York Heavy Artillery (Cos. A, B, C, F, G, K, L, and M) (July 27-31, 1864) (arrived from Fortress Monroe, Yorktown, and Gloucester Point, Va.)
Third Brigade, First Division, X Corps, Army of the James: Brigadier General Robert S. Foster (July 1-19, 1864 and July 23-31, 1864); Colonel Harris M. Plaisted (of the 11th ME) (July 19-23, 1864)
1st Maryland Cavalry (US) (dismounted)
1st New York Mounted Rifles (July 1-?, 1864)
Artillery Brigade, First Division, X Corps, Army of the James: Captain Loomis L. Langdon (July 1-28, 1864); Captain Zenas C. Warren (July 28-31, 1864)
Connecticut Light Artillery, 1st Battery
New Jersey Light Artillery, 5th Battery (E)
3rd Rhode Island Heavy Artillery, Battery C
1st United States Artillery, Battery M
Second Division, X Corps, Army of the James: Brigadier General John W. Turner
First Brigade, Second Division, X Corps, Army of the James: Colonel N. Martin Curtis (of the 142nd NY)
Second Brigade, Second Division, X Corps, Army of the James: Major Edward Eddy, Jr. (of the 47th NY) (July 1, 1864); Lieutenant Colonel William B. Coan (of the 48th NY) (July 2-31, 1864)
115th New York Infantry (July 1-26, 1864) (moved to 3/2/X/AotJ)
97th Pennsylvania Infantry (July 26-31, 1864)
Third Brigade, Second Division, X Corps, Army of the James: Colonel Louis Bell (of the 4th NH)
13th Indiana Infantry (3 Cos.)
115th New York Infantry (July 26-31, 1864)
97th Pennsylvania Infantry (July 1-26, 1864) (moved to 2/2/X/AotJ)
Artillery Brigade, Second Division, X Corps, Army of the James: Captain Frederick M. Follett
New Jersey Light Artillery, 4th Battery (D)
1st United States Artillery, Battery D
3rd United States Artillery, Battery E
4th United States Artillery, Battery D
Wisconsin Light Artillery, 4th Battery (July 1-?, 1864)
Third Division, X Corps, Army of the James: Brigadier General Orris S. Ferry
First Brigade, Third Division, X Corps, Army of the James: Brigadier General Gilman Marston
16th New York Heavy Artillery (Cos. E and H)
3rd Pennsylvania Heavy Artillery (Co. B)
1st USCT Cavalry (dismounted) (Cos. E and I)
Second Brigade, Third Division, X Corps, Army of the James: Colonel James B. Armstrong (of the 134th OH)
138th Ohio Infantry (July 1-14, 1864) (Detached to Eastern Shore, VA on July 14, 1864)
Artillery Brigade, Old Third Division, X Corps, Army of the James (left behind when Old Third Division went to Cold Harbor)
New York Light Artillery, 33rd Battery
XVIII Corps, Army of the James: Major General William F. Smith (July 1-10, 1864); Brigadier General John H. Martindale (July 10-21, 1864); Major General Edward O. C. Ord (July 21-31, 1864)
Unattached, XVIII Corps, Army of the James
4th Massachusetts Cavalry (Cos. E and H)
1st New York Engineers (Cos. B, K, and M)
1st New York Mounted Rifles (Cos. D and H)
5th Pennsylvania Cavalry (Cos. H and I)
11th Pennsylvania Cavalry (Co. H)
Provost Guard, XVIII Corps, Army of the James
79th New York Infantry (1 Co., then 2 Cos.)
First Division, XVIII Corps, Army of the James: Brigadier General George J. Stannard (July 1-30, 1864); Brigadier General Hiram Burnham (July 31, 1864)
First Brigade, First Division, XVIII Corps, Army of the James: Colonel Edgar M. Cullen (of the 96th NY) (July 1-(25?), 1864); Colonel Aaron F. Stevens (of the 13th NH) (July 31, 1864)
13th New Hampshire Infantry (July 25-31, 1864)
96th New York Infantry (July 1-25, 1864) (moved to 2/1/XVIII/AotJ)
Second Brigade, First Division, XVIII Corps, Army of the James: Brigadier General Hiram Burnham (July 1-31, 1864) (but took command of First Division on July 31, 1864); Colonel Edgar M. Cullen (of the 96th NY) (July 31, 1864)
13th New Hampshire Infantry (July 1-25, 1864) (moved to 1/1/XVIII/AotJ)
96th New York Infantry (July 25-31, 1864)
Third Brigade, First Division, XVIII Corps, Army of the James: Colonel Guy V. Henry (of the 40th MA)
Second Division, XVIII Corps, Army of the James: Brigadier General John H. Martindale (July 1-10, 1864); Brigadier General Adelbert Ames (July 10-31, 1864)
First Brigade, Second Division, XVIII Corps, Army of the James: Colonel Alexander Piper (of the 10th NY HA) (July 1-24, 1864); Colonel James Stewart, Jr. (of the 9th NJ) (July 24-31, 1864)
Second Brigade, Second Division, XVIII Corps, Army of the James: Colonel Griffin A. Stedman, Jr. (of the 11th CT)
Third Brigade, Second Division, XVIII Corps, Army of the James: Brigadier General Adelbert Ames (July 1-10, 1864); Colonel Harrison S. Fairchild (of the 89th NY) (July 11-31, 1864)
2nd Pennsylvania Heavy Artillery
Third Division, XVIII Corps, Army of the James: Brigadier General Edward W. Hinks (July 1, 1864); Colonel John H. Holman (of the 1st USCT Infantry) (July 1-29, 1864); Brigadier General Joseph B. Carr (July 29-31, 1864)
First Brigade, Third Division, XVIII Corps, Army of the James: Colonel John H. Holman (of the 1st USCT Infantry) (July 1, 1864); Colonel Jeptha Garrard (of the 1st USCT Cavalry) (July 2-31, 1864)
Second Brigade, Third Division, XVIII Corps, Army of the James: Colonel Samuel A. Duncan (of the 4th USCT)
Artillery Brigade, XVIII Corps, Army of the James: Colonel Henry S. Burton (July 1-24, 1864); Colonel Alexander Piper (July 24-31, 1864)
3rd New York Light Artillery, Battery E
3rd New York Light Artillery, Battery H
3rd New York Light Artillery, Battery K
3rd New York Light Artillery, Battery M
New York Light Artillery, 7th Battery
New York Light Artillery, 16th Battery
New York Light Artillery, 17th Battery
1st Pennsylvania Light Artillery, Battery E (July 5-31, 1864)
1st Rhode Island Light Artillery, Battery F
1st United States Artillery, Battery B
4th United States Artillery, Battery L
5th United States Artillery, Battery A
5th United States Artillery, Battery F (July 6-31, 1864)
Cavalry Division, Army of the James: Brigadier General August V. Kautz
First Brigade, Cavalry Division, Army of the James: Colonel Robert M. West (of the 5th PA Cav)
Second Brigade, Cavalry Division, Army of the James: Colonel Samuel P. Spear (of the 11th PA Cav)
1st District of Columbia Cavalry
Artillery, Cavalry Division, Army of the James
Wisconsin Light Artillery, 4th Battery
XIX Corps (attached to X Corps, Army of the James) (Present only for a short time in late July 1864) (XIX Corps had arrived from New Orleans as reinforcements for the Union armies at the Siege of Petersburg, but after Early threatened Washington, D. C. many regiments never stopped at the Siege and instead sailed directly to Washington, D. C. This segment followed soon after at the end of July, and the reunited XIX Corps participated in Sheridan’s Valley Campaign.)
Second Brigade, First Division, XIX Corps: Brigadier General James W. McMillan (stayed at Bermuda Hundred); Colonel Isaac Dyer (of the 15th ME) (led the regiments at Deep Bottom)
12th Connecticut Infantry (July 19-(27?), 1864)
13th Maine Infantry (July 18-(27?), 1864)
15th Maine Infantry (July 18-(27?), 1864)
47th Pennsylvania Infantry (July 19-(27?), 1864)
Third Brigade, First Division, XIX Corps: Colonel Leonard D. H. Currie (of the 133rd NY)
30th Maine Infantry (July 19-(28 or 31?), 1864)
133rd New York Infantry (July 18-(28 or 31?), 1864)
160th New York Infantry (July 20-(28?), 1864)
162nd New York Infantry (July 20-28, 1864)
165th New York Infantry (July 19-28, 1864)
173rd New York Infantry (July 19-27, 1864)
First Brigade, Second Division, XIX Corps: Brigadier General Henry W. Birge
9th Connecticut Infantry (July 20-30, 1864)
12th Maine Infantry (July 21-31, 1864)
14th Maine Infantry (July 21-31, 1864)
26th Massachusetts Infantry (July 20-30, 1864)
14th New Hampshire Infantry (July 21-31, 1864)
75th New York Infantry (July 21-31, 1864)
Second Brigade, Second Division, XIX Corps: Colonel Edward L. Molineux (of the 159th NY)
22nd Iowa Infantry (July 25-31, 1864)
131st New York Infantry (July 25-31, 1864)
159th New York Infantry (July 25-31, 1864)
Third Brigade, Second Division, XIX Corps: None Listed, only 18th IN was present of this brigade
18th Indiana Infantry (July 21-31, 1864)
Union Navy
July 1-31, 1864
Note: This order of battle is taken from Official Records of the Union and Confederate Navies in the War of the Rebellion, Volume X, pp. 324–325 unless otherwise noted. For detailed citations regarding captains, stations, armament, and other details, click on the unit pages linked below.
North Atlantic Blockading Squadron
Fourth Division (James River), North Atlantic Blockading Squadron
USS Picket Boat No. 1 (aka Tug No. 1)
USS Picket Boat No. 3 (aka Tug No. 3)
USS Picket Boat No. 4 (aka Tug No. 4)
USS Picket Boat No. 5 (aka Tug No. 5)
USS Picket Boat No. 6 (aka Tug No. 6)
USS Shokokon (ordered to Beaufort on July 31, 1864)
USS Cohasset (ordered to Beaufort, NC on July 31, 1864)
USS Zouave (ordered to Beaufort, NC on July 31, 1864)
York River, Va., North Atlantic Blockading Squadron
USS Harcourt (ordered to Beaufort, NC on July 31, 1864)
Norfolk Navy Yard, Va. (repairing), North Atlantic Blockading Squadron
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