Battle of Yorktown
Union Order of Battle
GENERAL HEADQUARTERS.
Provost Guard.
2nd U. S. Cavalry.
Battalion 8th U. S. Infantry.
Battalion 17th U. S. Infantry.
Guards and Orderlies.
A and E, 4th U. S. Cavalry.
Independent company Oneida Cavalry.
Sturges' Rifles.
SECOND ARMY CORPS.-Brigadier General EDWIN V. SUMNER.
SEDGEWICK'S DIVISION.
Brigadier General JOHN SEDGWICK.
Provost Guard.
K, 6th New York Cavalry.
Gordman's Brigade.
Brigadier General WILLIS A. GORMAN.
1st Minnesota.
15th Massachusetts.
34th New York.
82nd New York.
1st Company Mass. Sharpshooters.
Dana's Brigade.
Brigadier General N. J. T. DANA.
7th Michigan.
19th Massachusetts.
20th Massachusetts.
42nd New York.
Burns' Brigade.
Brigadier General WILLIAM W. BURNE.
69th Pennsylvania.
71st Pennsylvania.
72nd Pennsylvania.
106th Pennsylvania.
Artillery.
Colonel CHARLES H. TOMPKINS.
A, 1st Rhode Island.
B, 1st Rhode Island.
G, 1st Rhode Island.
I, 1st United States.
RICHARDSON'S DIVISION.
Brigadier General ISRAEL B. RICHARDSON.
Provost Guard.
D, 6th New York Cavalry.
Howard's Brigade.
Brigadier General OLIVER O. HOWARD.
5th New Hampshire.
61st New York.
64th New York.
81st Pennsylvania.
Meagher's Brigade.
Brigadier General THOMAS F. MEAGHER.
63rd New York.
69th New York.
88th New York.
French's Brigade.
Brigadier General WILLIAM H. FRENCE.
52nd New York.
57th New York.
66th New York.
53rd Pennsylvania.
Artillery.
Captain GEORGE W. HAZZARD.
B, 1st New York.
G, 1st New York.
A, 2nd Battalion New York.
A, 4th United States.
C, 4th United States.
CAVALRY.
Colonel JOHN F. FARNSWORTH.
8th Illinois.
THIRD ARMY CORPS.-Brigadier General S. P. HEINTZELMAN.
PORTER'S DIVISION.
Brigadier General FITZ JOHN PORTER.
First Brigade.
Brigadier General JOHN H. MARTINDALE.
2nd Maine.
18th Massachusetts.
22nd Massachusetts.
13th New York.
25th New York.
2nd Company Mass. Sharpshooters.
Second Brigade.
Brigadier General GEORGE W. MORELL.
4th Michigan.
9th Massachusetts.
14th New York.
62nd Pennsylvania.
Third Brigade.
Brigadier General DANIEL BUTTERFIELD.
16th Michigan.
83rd Pennsylvania.
12th New York.
17th New York.
44th New York.
Artillery.
Captain CHARLES GRIFFIN.
C, Massachusetts.
E, Massachusetts.
C, 1st Rhode Island.
D, 5th United States.
Unattached.
1st U. S. Sharpshooters.
A, 8th Pennsylvania Cavalry.
HOOKER'S DIVISION.
Brigadier General JOSEPH HOOKER.
First Brigade.
Brigadier General CUVIER GROVER.
2nd New Hampshire.
1st Massachusetts.
11th Massachusetts.
26th Pennsylvania.
Second Brigade.
Colonel NELSON TAYLOR.
70th New York.
71st New York.
72nd New York.
73rd New York.
74th New York.
Third Brigade.
Colonel SAMUEL H. STARR.
5th New Jersey.
6th New Jersey.
7th New Jersey.
8th New Jersey.
Artillery.
Major C. S. WAINWRIGHT.
D, 1st New York.
4th New York Battery.
6th New York Battery.
H, 1st United States.
HAMILTON'S DIVISION.
(1.) Brigadier General CHARLES S. HAMILTON.
(2.) Brigadier General PHILIP KEARNY.
First Brigade.
Brigadier General C. D. JAMESON.
57th Pennsylvania.
63rd Pennsylvania.
105th Pennsylvania.
87th New York.
Second Brigade.
Brigadier General DAVID B. BIRNEY.
3rd Maine.
4th Maine.
38th New York.
40th New York.
Third Brigade.
Brigadier General HIRAM G. BERRY.
2nd Michigan.
3rd Michigan.
5th Michigan.
37th New York.
Artillery.
Captain JAMES THOMPSON.
B, 1st New Jersey.
E, 1st Rhode Island.
G, 2nd United States.
CAVALRY.
Colonel WILLIAM W. AVERELL.
3rd Pennsylvania.
FOURTH ARMY CORPS.-Brigadier General ERASMUS D. KEYES.
FIRST DIVISION.
Brigadier General DARIUS N. COUCH.
Brigg's Brigade.
Colonel HENRY S. BRIGGS.
2nd Rhode Island.
7th Massachusetts.
10th Massachusetts.
36th New York.
Peck's Brigade.
Brigadier General JOHN H. PECK.
55th New York.
62nd New York.
93rd Pennsylvania.
98th Pennsylvania.
102nd Pennsylvania.
Graham's Brigade.
Brigadier General L. P. GRAHAM.
23rd Pennsylvania.
31st Pennsylvania.
61st Pennsylvania.
65th New York.
67th New York.
Artillery.
Major R. M. WEST.
C, 1st Pennsylvania.
D, 1st Pennsylvania.
E, 1st Pennsylvania.
H, 1st Pennsylvania.
SMITH'S DIVISION.
Brigadier General WILLIAM F. SMITH.
First Brigade.
Brigadier General WINFIELD S. HANCOCK.
5th Wisconsin.
6th Maine.
43rd New York.
49th Pennsylvania.
Second Brigade.
Brigadier General W. T. H. BROOKS.
2nd Vermont.
3rd Vermont.
4th Vermont.
5th Vermont.
6th Vermont.
SMITH'S DIVISION-CONTINUED.
Third Brigade.
Brigadier General JOHN W. DAVIDSON.
7th Maine.
33rd New York.
49th New York.
77th New York.
Artillery.
Captain R. B. AYRES.
1st New York Battery.
3rd New York Battery.
E, 1st New York.
F, 5th United States.
CASEY'S DIVISION.
Brigadier General SILAS CASEY.
First Brigade.
Brigadier General HENRY M. NAGLEE.
52nd Pennsylvania.
104th Pennsylvania.
56th New York.
100th New York.
11th Maine.
Second Brigade.
Brigadier General WILLIAM H. KEIM.
85th Pennsylvania.
101st Pennsylvania.
103rd Pennsylvania.
96th New York.
Third Brigade.
Brigadier General I. N. PALMER.
81st New York.
85th New York.
92nd New York.
93rd New York.
98th New York.
Artillery.
Colonel G. D. BAILEY.
A, 1st New York.
H, 1st New York.
7th New York Battery.
8th New York Battery.
BRIGADE REGULAR INFANTRY.
Brigadier General GEORGE SYKES.
2nd United States.
3rd United States.
4th United States.
6th United States.
10th United States.
11th United States.
12th United States.
14th United States.
17th United States.
5th New York.
CAVALRY RESERVE.
Brigadier General R. ST. GEORGE COOKE.
Emory's Brigade.
Brigadier General WILLIAM H. EMORY.
5th United States.
6th United States.
6th Pennsylvania.
Blake's Brigade.
Colonel GEORGE A. H. BLAKE.
1st United States.
8th Pennsylvania.
McClellan Dragoons.
ARTILLERY RESERVE.
Colonel HENRY J. HUNT.
E, 1st United States.
G, 1st United States.
K, 1st United States.
A, 2nd United States.
B, 2nd United States.
E, 2nd United States.
M, 2nd United States.
C, 3rd United States.
F, 3rd United States.
G, 3rd United States.
K, 3rd United States.
L, 3rd United States.
M, 3rd United States.
G, 4th United States.
K, 4th United States.
A, 5th United States.
I, 5th United States.
K, 5th United States.
A, 1st Battalion New York.
B, 1st Battalion New York.
C, 1st Battalion New York.
D, 1st Battalion New York.
5th New York Battery.
CAVALRY.
9th New York.
SIEGE TRAIN.
Colonel R. O. TYLER.
1st Connecticut Heavy Artillery.
VOLUNTEER ENGINEER BRIGADE.
Brigadier General D. P. WOODBURY.
15th New York.
50th New York.
BATTALION UNITED STATES ENGINEERS.
Captain J. C. DUANE.