# Second Battle of Charleston Harbor order of battle: Union

The following Union Army units and commanders fought in the Siege of Charleston Harbor of the American Civil War. The Confederate order of battle is listed separately.
The following lists contain the commanders and units involved in the operations against Charleston Harbor from July to September 1863 which included the major engagements of First Fort Wagner, Grimball's Landing, Second Fort Wagner and the Siege of Charleston Harbor.

## Abbreviations used
### Military ranks

* MG = Major general
* BG = Brigadier general
* Col = Colonel
* Ltc = Lieutenant colonel
* Maj = Major
* Cpt = Captain
* Lt = 1st lieutenant

### Other

* w = wounded
* mw = mortally wounded
* k = killed

## Initial Operations (July 6–18, 1863)
### X Corps (Department of the South)

BG Quincy A. Gillmore
| Division | Brigade | Regiments and Others |
| First Division   BG Alfred H. Terry (Engaged at James Island) | 1st Brigade   BG Thomas G. Stevenson | 4th New Hampshire 10th Connecticut 24th Massachusetts 97th Pennsylvania |
| First Division   BG Alfred H. Terry (Engaged at James Island) | 2nd Brigade   Col William Watts Hart Davis | 52nd Pennsylvania 104th Pennsylvania 56th New York 100th New York |
| First Division   BG Alfred H. Terry (Engaged at James Island) | 3rd Brigade   Col James Montgomery | 2nd South Carolina 54th Massachusetts |
| 2nd Division   BG Truman Seymour (Engaged at First Fort Wagner) | 1st Brigade   BG Israel Vogdes | 39th Illinois 62nd Ohio 67th Ohio 7th New Hampshire 85th Pennsylvania Independent New York Battalion |
| 2nd Division   BG Truman Seymour (Engaged at First Fort Wagner) | 2nd Brigade   BG George C. Strong | 3rd New Hampshire 7th Connecticut 9th Maine 76th Pennsylvania |

### Fort Wagner (July 18, 1863)

| Division | Brigade | Regiments and Others |
| Attacking Column   BG Truman Seymour (w) | Strong's Brigade   BG George C. Strong (mw) | 3rd New Hampshire 6th Connecticut: Col John Lyman Chatfield (mw) 9th Maine 48th New York: Col William B. Barton (w) 54th Massachusetts: Col Robert G. Shaw (k) 76th Pennsylvania |
| Attacking Column   BG Truman Seymour (w) | Putnam's Brigade   Col Haldimand S. Putnam (k) | 7th New Hampshire 62nd Ohio 67th Ohio 100th New York |
| Attacking Column   BG Truman Seymour (w) | Stevenson's Brigade   BG Thomas G. Stevenson | 2nd South Carolina 10th Connecticut 24th Massachusetts 97th Pennsylvania |

## Siege Operations (July 18-September 7, 1863)
### X Corps, Department of the South (July–August)

BG Quincy A. Gillmore
* Chief of Staff and Artillery: Col John Wesley Turner
* Engineers: Col Edward W. Serrell
* Medical Director: Ltc Augustus C. Hamlin
| Division | Brigade | Regiments and Others |
| Morris Island   BG Alfred H. Terry | 1st Brigade   BG Israel Vogdes until 1 Aug   Col Henry R. Guss | 3rd New Hampshire: Cpt James F. Randlett 4th New Hampshire: Col Louis Bell 7th Connecticut (detachment): Cpt Sylvester Gray 9th Maine: Ltc Zina H. Robinson 76th Pennsylvania: Cpt John S. Littell |
| Morris Island   BG Alfred H. Terry | 2nd Brigade   Col Joshua B. Howell | 2nd South Carolina: Col James Montgomery 39th Illinois: Col Thomas O. Osborn 62nd Ohio: Col Francis Bates Pond 67th Ohio: Maj Lewis Butler 85th Pennsylvania: Ltc Henry A. Purviance |
| Morris Island   BG Alfred H. Terry | 3rd Brigade   BG Thomas G. Stevenson | 7th New Hampshire: Ltc Joseph C. Abbott 10th Connecticut: Maj Edwin S. Greeley 24th Massachusetts: Col Francis A. Osborn 54th Massachusetts: Col Milton S. Littlefield 97th Pennsylvania: Col Henry R. Guss 100th New York: Col George B. Dandy |
| Morris Island   BG Alfred H. Terry | Artillery   Maj James E. Bailey | 3rd Rhode Island Heavy Artillery, Battery A 3rd Rhode Island Heavy Artillery, Battery B 3rd Rhode Island Heavy Artillery, Battery C 3rd Rhode Island Heavy Artillery, Battery D 3rd Rhode Island Heavy Artillery, Battery H 3rd Rhode Island Heavy Artillery, Battery I 3rd Rhode Island Heavy Artillery, Battery M 3rd New York Artillery, Battery B: Lt Edward A. Wildt 3rd New York Artillery, Battery F: Lt Paul Birchmeyer 1st U.S. Artillery, Battery B: Lt Guy V. Henry 1st U.S. Artillery, Battery C: Lt James E. Wilson 3rd U.S. Artillery, Battery E: Lt John R. Myrick 48th New York Infantry (detachment serving as artillery): Maj Dudley Strickland 11th Maine Infantry (detachment serving as artillery): Lt Charles Sellmer |
| Morris Island   BG Alfred H. Terry | Cavalry | 1st Massachusetts Cavalry, Company I: Lt Charles V. Holt |
| Morris Island   BG Alfred H. Terry | Engineers | 1st New York Engineers: Col Edward W. Serrell, Maj Thomas B. Brooks |
| Morris Island   BG Alfred H. Terry | Marines | Marine Battalion: Maj Jacob Zeilin |
| Folly Island   Col William W.H. Davis | Davis' Brigade   Col William W.H. Davis | 52nd Pennsylvania: Col John C. Dodge 56th New York: Col Charles Van Wyck 104th Pennsylvania: Ltc Thompson D. Hart |
| Folly Island   Col William W.H. Davis | Not brigaded | 47th New York: Ltc Albert B. Nicholson Independent New York Battalion: Ltc Simon Levy |
| Folly Island   Col William W.H. Davis | Artillery | 1st Connecticut Battery: Cpt Alfred P. Rockwell 3rd New York Artillery, Battery B: Cpt James Ashcroft |

### X Corps, Department of the South (August–September)

MG Quincy A. Gillmore
* Chief of Staff and Artillery: Col John Wesley Turner
* Engineers: Col Edward W. Serrell
* Medical Director: Ltc Augustus C. Hamlin
| Division | Brigade | Regiments and Others |
| Morris Island   BG Alfred H. Terry | 1st Brigade   Col Henry R. Guss | 3rd New Hampshire: Cpt James F. Randlett 4th New Hampshire: Col Louis Bell 9th Maine: Ltc Zina H. Robinson 97th Pennsylvania: Maj Galusha Pennypacker |
| Morris Island   BG Alfred H. Terry | 2nd Brigade   Col Joshua B. Howell | 39th Illinois: Col Thomas O. Osborn 62nd Ohio: Col Francis Bates Pond 67th Ohio: Maj Lewis Butler 85th Pennsylvania: Maj Edward Campbell |
| Morris Island   BG Alfred H. Terry | 3rd Brigade   BG Thomas G. Stevenson | 7th New Hampshire: Ltc Joseph C. Abbott 7th Connecticut: Col Joseph R. Hawley 10th Connecticut: Maj Edwin S. Greeley 24th Massachusetts: Col Francis A. Osborn 100th New York: Col George B. Dandy |
| Morris Island   BG Alfred H. Terry | 4th Brigade   Col James Montgomery | 2nd South Carolina 3rd U.S.C.T.: Col Benjamin C. Tilghman 54th Massachusetts: Col Milton S. Littlefield |
| Morris Island   BG Alfred H. Terry | 5th Brigade   Col William W.H. Davis | 47th New York: Maj Christopher R. MacDonald 52nd Pennsylvania: Ltc Henry M. Hoyt 104th Pennsylvania: Maj Edward L. Rodgers Independent New York Battalion: Cpt Michael Schmitt |
| Morris Island   BG Alfred H. Terry | Artillery | 3rd New York Artillery, Battery B: Cpt James E. Ashcroft 3rd New York Artillery, Battery F: Lt Paul Birchmeyer 3rd Rhode Island Heavy Artillery, Battery B: Cpt Albert E. Greene 3rd Rhode Island Heavy Artillery, Battery C: Cpt Charles R. Brayton 3rd Rhode Island Heavy Artillery, Battery D: Cpt Richard G. Shaw 3rd Rhode Island Heavy Artillery, Battery H: Cpt Augustus Colwell 3rd Rhode Island Heavy Artillery, Battery I: Cpt Charles G. Strahan 3rd Rhode Island Heavy Artillery, Battery M: Cpt Joseph J. Comstock 1st U.S. Artillery, Battery B: Lt Guy V. Henry 1st U.S. Artillery, Battery C (detachment): Lt James W. Wilson 3rd U.S. Artillery, Battery E: Lt John R. Myrick 11th Maine Infantry (detachment serving as artillery): Lt Charles Sellmer |
| Morris Island   BG Alfred H. Terry | Unassigned | Marine Battalion: Cpt Edward M. Reynolds 1st Massachusetts Cavalry, Company I: Lt Charles V. Holt |
| Morris Island   BG Alfred H. Terry | Engineers | 1st New York Engineers: Col Edward W. Serrell |
| North End of Folly Island   BG Israel Vogdes | 1st Brigade   BG Robert S. Foster | 13th Indiana: Col Cyrus J. Dobbs 112th New York: Col Jeremiah C. Drake 169th New York: Col Clarence Buell |
| North End of Folly Island   BG Israel Vogdes | 2nd Brigade   Col Samuel M. Alford | 3rd New York: Ltc Eldridge G. Floyd 89th New York: Col Harrison S. Fairchild 103rd New York: Col Wilhelm Heine 117th New York: Col Alvin White |
| North End of Folly Island   BG Israel Vogdes | 3rd "African" Brigade   BG Edward A. Wild | 1st North Carolina: Col James C. Beecher 2nd North Carolina (detachment): Col Alonzo G. Draper 3rd North Carolina (one company): Cpt John Wilder 55th Massachusetts: Col Norwood P. Hallowell |
| North End of Folly Island   BG Israel Vogdes | Artillery | 1st Connecticut Battery: Cpt Alfred P. Rockwell |
| South End of Folly Island   BG George H. Gordon | 1st Brigade   BG Alexander Schimmelfennig | 41st New York: Ltc Detlev von Einsiedel 54th New York: Cpt Clemens Knipschild 127th New York: Col Stewart L. Woodford 142nd New York: Col Newton M. Curtis 74th Pennsylvania: Cpt Henry Krauseneck 107th Ohio: Cpt William Smith |
| South End of Folly Island   BG George H. Gordon | 2nd Brigade   BG Adelbert Ames | 17th Connecticut: Col William H. Noble 25th Ohio: Cpt Nathaniel Haughton 75th Ohio: Col Andrew L. Harris 40th Massachusetts: Ltc Joseph A. Dalton 144th New York: Col David E. Gregory 157th New York: Maj James C. Carmichael |

## Naval Blockade
### South Atlantic Blockading Squadron

Rear Admiral John A. Dahlgren
| Class | Vessel |
| Ironclads | U.S.S. Montauk |
| Ironclads | U.S.S. Nahant |
| Ironclads | U.S.S. Catskill |
| Ironclads | U.S.S. Passaic |
| Ironclads | U.S.S. Patapsco |
| Ironclads | U.S.S. New Ironsides: Cdre Thomas Turner, Capt Stephen C. Rowan |
| Gunboats | U.S.S. Canandaigua |
| Gunboats | U.S.S. Mahaska |
| Gunboats | U.S.S. Ottawa |
| Gunboats | U.S.S. Wissahickon |
| Gunboats | U.S.S. Dai Ching |
| Gunboats | U.S.S. Lodona |
| Gunboats | U.S.S. Seneca |
| U.S. Marines | Marine Battalion: Maj Jacob Zeilen |