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^[1]

Division	Brigade	Regiments and Other
Emergency Division^[2]    BG Montgomery C. Meigs	First Brigade BG Daniel H. Rucker	Quartermaster's employees Detachment from Provisional Brigade
	Second Brigade BG Halbert E. Paine	2nd District of Columbia: Col Charles Madison Alexander 12th Regiment, Veteran Reserve Corps Quartermaster's employees, three companies
	3rd Brigade Col Richard Butler Price Col Addison Farnsworth, July 12^[3]	Quartermaster's employees Convalescents
	Cavalry	Dismounted cavalry detachment: Maj George G. Briggs^[4] 25th New York Cavalry (dismounted): Maj Charles J. Seymour

VI Corps

MG Horatio G. Wright^[5]

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
	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
	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
	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
	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^[6][7]

Division	Brigade	Regiments and Others
First Division    BG William Dwight^[8]	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
	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:^[9] Col Tilghman H. Good 8th Vermont: Col Stephen Thomas
	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
	Division Artillery	New York Light Artillery, 5th Battery 1st Rhode Island Artillery, Battery D: Cpt William W. Buckley
Second Division    BG Cuvier Grover^[10]	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
	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

Main article: XXII Corps (Union Army)

MG Christopher C. Augur

Division	Brigade	Regiments and Others
Defenses North of the Potomac^[11]    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.
	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
	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^[12]    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
	2nd Brigade Col Thomas Wilhelm^[13]	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
	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)
	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)
	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^[14]	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
	Not brigaded^[15]	27th Pennsylvania, Company F 150th Pennsylvania, Company K Union Light Guard (Ohio Cavalry) U.S. Ordnance Detachment
Cavalry Division^[16]    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)
	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)
	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^[17]    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
	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.^[18]

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)

References

• Eicher, John H., & Eicher, David J., Civil War High Commands, Stanford University Press, 2001, ISBN 0-8047-3641-3.

1. Official Records p.234
2. Meigs' Official Report p. 255
3. Eicher p. 231
4. Briggs commanded about 600 troopers from the 2nd Division, Cavalry Corps, Army of the Potomac (Official Records)
5. Official Records p. 550
6. Gillmore commanded the XIX Corps detachment until July 13 when Brig. Gen. William H. Emory was assigned to command. Eicher p255.
7. Official Records page 551
8. Roughly 70 percent of the 47th Pennsylvania Infantry (companies A, C, D, E, F, H, and I under Col. Tilghman H. Good) was stationed at Fort Stevens long enough to see President Lincoln during his visit, but appears not to have been involved in the actual battle due to the timing of its arrival from Louisiana and quick re-direct to join the Union forces pursuing BG Jubal Early's Confederate troops in Maryland and Virginia's Shenandoah Valley, according to later recollections by John Peter Shindel Gobin, the 47th's final commanding officer (who was Company C's captain at the time the 47th was at Fort Stevens; see "A Voyage North and a Memorable Encounter with Abraham Lincoln," in 47th Pennsylvania Volunteers: One Civil War Regiment's Story). The bulk of the 47th fought under MG David Hunter in and around Snicker's Gap (Battle of Cool Spring, Virginia on July 18) while the 47th's other companies remained in Louisiana awaiting transport to the Eastern Theater. (Companies B, G and K did not arrive in Washington until July 28, and did not reconnect with the main part of the regiment until August 2 in Maryland at Monocacy.)
9. While the 47th Pennsylvania was briefly stationed at Fort Stevens, this regiment was redirected toward the Union's effort to stop BG Jubal Early's Confederate advances in Maryland and Virginia and was, therefore, likely not involved in the actual battle of Fort Stevens; see "From Louisiana to Virginia: The Battle of Snicker's Gap and Service with the Army of the Shenandoah," in 47th Pennsylvania Volunteers: One Civil War Regiment's Story.
10. First Brigade (BG Henry W. Birge) and Second Brigade (Col Edward Molineux) detached for duty in Virginia. The First Brigade participating in the First Battle of Deep Bottom (see First Deep Bottom Union order of battle)
11. Official Records page 698
12. Official Records page 700
13. Official Records Chap XLIX p. 141
14. Official Records page 568
15. Official Records page 568
16. Cavalry Division consisted of detachments belonging to the cavalry of the Army of the Potomac and Middle Military Division. Composition taken from August 1864 organization (Official Records Chap LV p.978)
17. Official Records page 699
18. Official Records page 232