Fredericksburg & Spotsylvania National Military Park - Order of Battle Chancellorsville Union 3rd Corps (U.S. National Park Service)

Third Army Corps:

Major General Daniel Sickles

Chief of Artillery:
Captain George Randolph

First Division:
Brigadier General David Birney

First Brigade:
(1.) Brigadier General Charles Graham
(2.) Colonel Charles Egan

57th Pennsylvania: Col. Peter Sides
63rd Pennsylvania:
       Lieut. Col. William S. Kirkwood (mw)
       Capt. James F. Ryan
68th Pennsylvania: Col. Andrew H. Tippin
105th Pennsylvania (Wildcat Regiment):
       Col. Amor A. McKnight (k)
       Lieut. Col. Calvin A. Craig
114th Pennsylvania (Collis Zouaves):
       Col. Charles H. T. Collis
       Lieut. Col. Frederick F. Cavada
141st Pennsylvania: Col. Henry J. Madill

Second Brigade:
Brigadier General J. H. Hobart Ward

20th Indiana: Col. John Wheeler
3rd Maine: Col. Moses B. Lakeman
4th Maine: Col. Elijah Walker
38th New York: Col. P. Regis de Trobriand
40th New York (Mozart Regiment): Col. Thomas W. Egan
99th Pennsylvania: Col. Asher S. Leidy

Third Brigade:
Colonel Samuel Hayman

17th Maine:
       Lieut. Col. Charles B. Merrill
       Col. Thomas A. Roberts
3rd Michigan:
       Col. Byron R. Pierce (w)
       Lieut. Col. Edwin S. Pierce
5th Michigan:
       Lieut. Col. Edward T. Sherlock (k)
       Maj. John Pulford
1st New York: Lieut. Col. Francis L. Leland
37th New York: Lieut. Col. Gilbert Riordan

Divisional Artillery
Captain Judson Clark

New Jersey Light, Battery B: Lieut. Robert Sims
1st Rhode Island Light, Battery E: Lieut. Pardon S. Jastram
3rd United States Artilery, Batteries F and K: Lieut. John G. Turnbull

Second Division:
(1.) Major General Hiram Berry (k)
(2.) Brigadier General Joseph Carr

First Brigade:
(1.) Brigadier General Joseph Carr
(2.) Colonel William Blaisdell

1st Massachusetts: Col. Napoleon B. McLaughlen
11th Massachusetts:
       Col. William Blaisdell
       Lieut. Col. Porter D. Tripp
16th Massachusetts: Lieut. Col. Waldo Merriam
11th New Jersey: Col. Robert McAllister
26th Pennsylvania:
       Col. Benjamin C. Tilghman (w)
       Maj. Robert L. Bodine

Second Brigade (Excelsior Brigade):
(1.) Brigadier General Joseph Revere
(2.) Colonel Egbert Farnum

70th New York:
       Col. J. Egbert Farnum
       Lieut. Col. Thomas Holt
71st New York: Col. Henry L. Potter
72nd New York:
       Col. William Stevens (k)
       Maj. John Leonard
73rd New York: Maj. Michael W. Burns
74th New York:
       Lieut. Col. William H. Lounsbury (w)
       Capt. Henry M. Alles (w)
       Capt. Francis E. Tyler
120th New York: Lieut. Col. Cornelius D. Westbrook

Third Brigade:
(1.) Brigadier General Gershom Mott (w)
(2.) Colonel William Sewell

5th New Jersey:
        Col. William J. Sewell
        Maj. Ashbel W. Angel (w)
        Capt. Virgil M. Healy
6th New Jersey:
       Col. George C. Burling (w)
        Lieut. Col. Stephen R. Gilkyson
7th New Jersey:
       Col. Louis R. Francine
       Lieut. Col. Francis Price
8th New Jersey:
       Col. John Ramsey (w)
       Capt. John G. Langston
2nd New York:
       Col. Sidney W. Park (w)
       Lieut. Col. William A. Olmsted
115th Pennsylvania:
       Col. Francis A. Lancaster (k)
       Maj. John P. Dunne

Divisional Artillery:
Captain Thomas Osborn

1st New York Light Artillery, Battery D, Lieut. George B. Winslow
New York Light Artillery, 4th Battery:
       Lieut. George F. Barstow
       Lieut. William T. McLean
1st United States Artillery, Battery H:
       Lieut. Justin E. Dimick (mw)
       Lieut. James A. Sanderson
4th United States Artillery, Battery K: Lieut. Francis W. Seeley

Third Division:
(1.) Major General Amiel Whipple (mw)
(2.) Brigadier General Charles Graham

First Brigade:
Colonel Emlen Franklin

86th New York:
Lieut. Col. Barna J. Chapin (k)
Capt. Jacob H. Lansing
124th New York (Orange Blossoms): Col. Augustus Van Horne Ellis
122nd Pennsylvania: Lieut. Col. Edward McGovern

Second Brigade.
Colonel Samuel Bowman

12th New Hampshire:
Col. Joseph H. Potter (w)
Lieut. Col. John Marsh (w)
Maj. Moses Savage (w)
84th Pennsylvania: Lieut. Col. Milton Opp
110th Pennsylvania:
Col. James Crowther (k)
Maj. David M. Jones (w-c)

Third Brigade:
Colonel Hiram Berdan

1st United States Sharpshooters: Lieut. Col. Casper Trepp
2nd United States Sharpshooters: Maj. Homer R. Stoughton

Divisional Artillery:
(1.) Captain Albert von Puttkammer
(2.) Captain James Huntington

10th New York Independent Light Artillery: Lieut. Samuel Lewis
11th New York Independent Light Artillery: Lieut. John E. Burton
1st Ohio Light, Battery H: Capt. James F. Huntington

Union High Command.
1st Army Corps.

Orders of Battle Page.