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 generalBG = Brigadier generalCol = ColonelLtc = Lieutenant colonelMaj = MajorCpt = CaptainLt = 1st lieutenant

Other

w = woundedmw = mortally woundedk = killed

Initial Operations">First Battle of Fort Wagner">Initial Operations (July 6–18, 1863)

X Corps">X Corps (Union Army)">X Corps ([Department of the South])

BG Quincy A. Gillmore

Division	Brigade	Regiments and Others
First Division BG Alfred H. Terry	1st Brigade BG Thomas G. Stevenson	4th New Hampshire 10th Connecticut 24th Massachusetts 97th Pennsylvania
First Division BG Alfred H. Terry	2nd Brigade Col William Watts Hart Davis	52nd Pennsylvania 104th Pennsylvania 56th New York 100th New York
First Division BG Alfred H. Terry	3rd Brigade Col James Montgomery	2nd South Carolina 54th Massachusetts
2nd Division BG Truman Seymour	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	2nd Brigade BG George C. Strong	3rd New Hampshire 7th Connecticut 9th Maine 76th Pennsylvania

Fort Wagner">Second Battle of Fort Wagner">Fort Wagner (July 18, 1863)

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

Siege Operations">Siege of Charleston Harbor">Siege Operations (July 18-September 7, 1863)

X Corps">X Corps (Union Army)">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 : 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 : Maj Dudley Strickland 11th Maine Infantry : 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">X Corps (Union Army)">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 : Lt James W. Wilson 3rd U.S. Artillery, Battery E: Lt John R. Myrick 11th Maine Infantry : 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 : Col Alonzo G. Draper 3rd North Carolina : 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