# Battle of Fort Stevens order of battle: Union

The following Union Army units and commanders fought in the Battle of Fort Stevens of the American Civil War on July 11–12, 1864. The Confederate order of battle is listed separately.

## Abbreviations used
### Military rank

* MG = Major General
* BG = Brigadier General
* Col = Colonel
* Ltc = Lieutenant Colonel
* Maj = Major
* Cpt = Captain

### Other

* w = wounded
* k = killed

## Defenses of the Potomac River & Washington

MG Alexander McDowell McCook
* Chief of Engineers: Ltc Barton Stone Alexander
* Aide-de-Camp: Col Norton Parker Chipman
| Division | Brigade | Regiments and Other |
| Emergency Division   BG Montgomery C. Meigs | First Brigade BG Daniel H. Rucker | Quartermaster's employees Detachment from Provisional Brigade |
| Emergency Division   BG Montgomery C. Meigs | Second Brigade BG Halbert E. Paine | 2nd District of Columbia: Col Charles Madison Alexander 12th Regiment, Veteran Reserve Corps Quartermaster's employees, three companies |
| Emergency Division   BG Montgomery C. Meigs | 3rd Brigade Col Richard Butler Price Col Addison Farnsworth, July 12 | Quartermaster's employees Convalescents |
| Emergency Division   BG Montgomery C. Meigs | Cavalry | Dismounted cavalry detachment: Maj George G. Briggs 25th New York Cavalry (dismounted): Maj Charles J. Seymour |

### VI Corps

MG Horatio G. Wright
| Division | Brigade | Regiments and Others |
| First Division   BG David A. Russell | 1st Brigade Col William H. Penrose | 4th New Jersey: Cpt Ebenezer Davis 10th New Jersey: Ltc Charles H. Tay 15th New Jersey: Ltc Edward L. Campbell |
| First Division   BG David A. Russell | 2nd Brigade BG Emory Upton | 2nd Connecticut Heavy Artillery: Col Ranald S. Mackenzie 65th New York: Col Joseph E. Hamblin 67th New York: Cpt Henry C. Fisk 95th Pennsylvania: Maj Francis Joshua Randall 96th Pennsylvania: Ltc William S. Lessig 121st New York: Maj Henry Galpin |
| First Division   BG David A. Russell | 3rd Brigade Col Oliver Edwards | 2nd Rhode Island: Cpt Elisha Hunt Rhodes 5th Wisconsin Battalion: Cpt Charles W. Kempf 6th Maine Battalion: Maj George Fuller 37th Massachusetts: Ltc George Montague 23rd Pennsylvania: Col John F. Glenn 49th Pennsylvania: Maj Amor W. Wakefield 82nd Pennsylvania: Ltc John M. Wetherill 119th Pennsylvania: Ltc Gideon Clark |
| Second Division   BG George W. Getty | 1st Brigade BG Frank Wheaton | 62nd New York: Cpt Lewis J. Stewart 93rd Pennsylvania: Ltc John S. Long 98th Pennsylvania: Ltc John B. Kohler 102nd Pennsylvania: Maj Thomas McLaughlin 139th Pennsylvania: Maj Robert Munroe |
| Second Division   BG George W. Getty | 2nd Brigade (Vermont Brigade) BG Lewis A. Grant | 1st Vermont Heavy Artillery: Maj Aldace F. Walker 2nd Vermont: Ltc Amasa S. Tracy 3rd Vermont: Ltc Samuel E. Pingree 4th Vermont: Col George P. Foster 5th Vermont: Cpt Friend H. Barney 6th Vermont: Ltc Oscar A. Hale |
| Second Division   BG George W. Getty | 3rd Brigade Col Daniel Bidwell | 7th Maine: Cpt John W. Channing 43rd New York: Cpt Volkert V. Van Patten 49th New York (battalion): Ltc George W. Johnson (mw), Cpt Erastus D. Holt 77th New York: Ltc Winsor B. French 122nd New York: Maj Jabez M. Brower 61st Pennsylvania (battalion): Cpt William H. Rodgers |
| Artillery | Artillery Brigade Col Charles H. Tompkins | 5th Maine Light Artillery: Cpt Greenlief T. Stevens 1st Massachusetts Light Artillery, Battery A: Cpt William H. McCartney 1st New York Light Artillery, Battery: Cpt Andrew Cowan 1st Rhode Island Light Artillery, Battery C: Cpt Richard Waterman 1st Rhode Island Light Artillery, Battery G: Cpt George W. Adams 5th U.S. Artillery, Battery M: Cpt James McKnight |

### XIX Corps (Detachment)

MG Quincy A. Gillmore
| Division | Brigade | Regiments and Others |
| First Division   BG William Dwight | 1st Brigade Col George L. Beal | 29th Maine: Ltc Charles S. Emerson 30th Massachusetts: Col Samuel D. Shipley 114th New York: Col Samuel R. Per Lee 116th New York: Col George M. Love 153rd New York: Col Edwin P. Davis |
| First Division   BG William Dwight | 2nd Brigade BG James W. McMillan | 12th Connecticut: Ltc Frank H. Peck 13th Maine: Col Henry Rust II 15th Maine: Col Isaac Dyer 47th Pennsylvania: Col Tilghman H. Good 8th Vermont: Col Stephen Thomas |
| First Division   BG William Dwight | 3rd Brigade Col Leonard D. H. Currie | 30th Maine: Cpt George W. Randall 133rd New York: Cpt Anthony J. Allaire 160th New York: Ltc John B. Van Petten 165th New York: Maj Felix Agnus 173rd New York: Maj George W. Rogers |
| First Division   BG William Dwight | Division Artillery | New York Light Artillery, 5th Battery 1st Rhode Island Artillery, Battery D: Cpt William W. Buckley |
| Second Division   BG Cuvier Grover | 3rd Brigade Col Jacob Sharpe | 38th Massachusetts: Ltc James P. Richardson 128th New York: Ltc James P. Foster 156th New York: Ltc Alfred Neafie 175th New York: Cpt Charles McCarthey 176th New York: Maj Charles Lewis |
| Second Division   BG Cuvier Grover | 4th Brigade Col David Shunk | 8th Indiana: Ltc Alexander J. Kinney 18th Indiana: Ltc William S. Charles 24th Iowa: Ltc John Q. Wilds 28th Iowa: Ltc Bartholomew W. Wilson |

### XXII Corps and Department of Washington

MG Christopher C. Augur
| Division | Brigade | Regiments and Others |
| Defenses North of the Potomac   BG Martin D. Hardin | 1st Brigade Col James M. Warner | 151st Ohio: Col John M. C. Marble 13th Michigan Battery: Lt Charles Dupont 14th Michigan Battery: Cpt Charles Heine 9th New York Heavy Artillery (detachment) 1st Pennsylvania Artillery Battalion: Maj Joseph M. Knap 1st Rhode Island Light Artillery, Battery D: Cpt William M. Buckley 2nd U.S. Artillery, Battery I 3rd U.S. Artillery, Battery G 4th U.S. Artillery, Battery A: Lt Rufus King, Jr. |
| Defenses North of the Potomac   BG Martin D. Hardin | 2nd Brigade Ltc Joseph A. Haskin | 150th Ohio: Col William H. Hayward 170th Ohio: Col Miles J. Saunders New Hampshire Heavy Artillery, 1st Company: Cpt Charles H. Long 1st Ohio Light Artillery, Battery L: Cpt Franklin C. Gibbs 2nd Pennsylvania Heavy Artillery: Cpt John Norris 2nd U.S. Artillery, Battery I: Lt William P. Graves 7th Veteran Reserve Corps 21st Veteran Reserve Corps |
| Defenses North of the Potomac   BG Martin D. Hardin | 3rd Brigade Ltc John H. Oberteuffer | Massachusetts Heavy Artillery (detachment) 3rd U.S. Artillery, Battery G: Lt Herbert F. Guthrie 1st Pennsylvania Light Artillery |
| Defenses South of the Potomac   BG Gustavus A. DeRussy | 1st Brigade Col Joseph N. G. Whistler | 145th Ohio: Col Henry C. Ashwill 147th Ohio: Col Benjamin R. Rosson 164th Ohio: Col John C. Lee, Ltc Augustus S. Bement 1st Maine Artillery, Battery A: Cpt Albert W. Bradbury Maryland Light Artillery, Battery A: Cpt James H. Rigby Maryland Light Artillery, Battery D: Cpt John M. Bruce 6th Massachusetts 18th Massachusetts (detachment) 1st New York Light Artillery, Battery K: Cpt Solon W. Stocking 5th New York Battery: Cpt Elijah D. Taft 84th New York 1st Pennsylvania Light Artillery, Battery G: Cpt Beldin Spence 1st Pennsylvania Light Artillery, Battery H: Cpt Andrew Fagan 1st Rhode Island Artillery, Battery H 1st U.S. Artillery, Battery E 2nd U.S. Artillery, Battery G: Lt James E. Wilson |
| Defenses South of the Potomac   BG Gustavus A. DeRussy | 2nd Brigade Col Thomas Wilhelm | Massachusetts Heavy Artillery, 15th Company 16th Massachusetts Independent Battery Pennsylvania Light Artillery, Battery C: Capt James Thompson Pennsylvania Light Artillery, Battery I: Cpt Robert J. Nevin 1st New York Heavy Artillery, Battery K 17th New York Artillery, Independent Battery 169th Ohio: Col Nathaniel Haynes 1st Rhode Island Light Artillery, Battery H: Cpt Crawford Allen 1st U.S. Artillery, Battery E: Lt Frank S. French |
| Defenses South of the Potomac   BG Gustavus A. DeRussy | 3rd Brigade created 10 July Col William Smith Irwin | Maryland Artillery, Battery D 136th Ohio: Col William Smith Irwin 142nd Ohio (detachment) 166th Ohio: Col Harrison G. Blake 16th Indiana Battery: Cpt Charles R. Deming Massachusetts Heavy Artillery, 15th Company: Cpt Joseph M. Parsons 1st New York Heavy Artillery, Battery F: Cpt William R. Wilson 1st Pennsylvania Heavy Artillery, Independent Battery 72nd Pennsylvania (detachment) 106th Pennsylvania (detachment) |
| Defenses South of the Potomac   BG Gustavus A. DeRussy | 4th Brigade created 2 July Maj. Charles C. Meservey | 66th New York (detachment) 136th Ohio (detachment) 10th New York Heavy Artillery (detachment) 1st West Virginia Light Artillery, Battery C: Cpt Wallace Hill 1st Wisconsin Heavy Artillery, Company A 2nd Massachusetts Cavalry (detachment) |
| Defenses South of the Potomac   BG Gustavus A. DeRussy | Cavalry Col Charles Russell Lowell | 2nd Massachusetts Cavalry: Ltc Caspar Crowninshield 13th New York Cavalry: Col Henry Gansevoort 16th New York Cavalry: Col Henry M. Lazelle |
| District of Washington   Col Moses N. Wisewell | 1st Veteran Reserve Brigade Col George W. Gile (attached to Hardin's Division) | 1st Regiment, Veteran Reserve Corps 9th Regiment, Veteran Reserve Corps 6th Regiment, Veteran Reserve Corps 19th Regiment, Veteran Reserve Corps 20th Regiment, Veteran Reserve Corps 22nd Regiment, Veteran Reserve Corps |
| District of Washington   Col Moses N. Wisewell | Not brigaded | 27th Pennsylvania, Company F 150th Pennsylvania, Company K Union Light Guard (Ohio Cavalry) U.S. Ordnance Detachment |
| Cavalry Division   Col William Gamble | 1st Division Cpt Benjamin Rockafellow | 1st Brigade: Lt Charles Parker (Detachments of 1st, 5th, 6th and 7th Michigan cavalry regiments) 2nd Brigade: Lt William J. Allen (Detachments of 4th, 6th and 9th New York and 17th Pennsylvania cavalry regiments) Reserve Brigade: Lt Marcellus E. Jones (Detachments of 19th New York, 6th Pennsylvania, 1st Rhode Island, 1st, 2nd, 5th and 6th U.S. cavalry regiments) |
| Cavalry Division   Col William Gamble | 2nd Division Cpt James T. Peale | 1st Brigade: Lt George W. Brooks (Detachments of 1st Massachusetts , 1st New Jersey, 10th New York, 6th Ohio, 1st and 3rd Pennsylvania cavalry regiments) 2nd Brigade: Cpt Robert A. Robinson (Detachments of 1st Maine, 2nd, 4th, 8th, 13th and 16th Pennsylvania cavalry regiments) |
| Cavalry Division   Col William Gamble | 3rd Division Maj Henry W. Sawyer | 1st Brigade: Cpt Robert Loudon (Detachments of 1st Connecticut, 2nd Ohio, 18th Pennsylvania, 2nd, 3rd and 5th New York cavalry regiments) 2nd Brigade: Lt George W. Byard (Detachments of 8th Illinois, 3rd Indiana, 1st Ohio, 1st Vermont, 8th, 22nd and 25th New York cavalry regiments) |
| District of Alexandria   BG John P. Slough  (not engaged) | 2nd Veteran Reserve Brigade Col William H. Browne | 3rd Regiment, Veteran Reserve Corps: Ltc John Spiedel 12th Regiment, Veteran Reserve Corps: Col Addison Farnsworth |
| District of Alexandria   BG John P. Slough  (not engaged) | Not brigaded | 1st District of Columbia: Ltc Robert Boyd Pennsylvania Light Artillery, Battery H: Cpt William Borrowe 8th Illinois Cavalry, Company D: Cpt Henry J. Hotop 1st Michigan Cavalry, Company D: Cpt Thurlow W. Lusk |

## Front Line Commanders

In addition to their own commands these officers supervised a section of Washington's fortifications during the battle.
| Commander | Line |
| Alexander M. McCook | Defenses of the Potomac River & Washington (overall command) |
| Quincy A. Gillmore | Northeast Line: Fort Lincoln to Fort Totten (XIX Corps, Detachment) |
| Montgomery C. Meigs | Northern Line: Fort Totten to Fort DeRussy (including Fort Stevens) (Quartermaster Corps) |
| Martin D. Hardin | Northwest Line: Fort DeRussy to Fort Sumner (1st Division, XXII Corps) |
| Horatio G. Wright | Reserve troops (VI Corps) |