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Commanded by Major General George Meade
Headquarters |
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| Headquarters Staff | ||
| Chief of Staff | Major General Andrew A. Humphreys | |
| Chief of Artillery | Brigadier General Henry J. Hunt | |
| Chief Engineer | ||
| Assistant Adjutant General | Brigadier General Seth Williams | |
| Inspector General | Colonel Delos B. Sacket | |
| Chief Quartermaster | Lieutenant Colonel Rufus Ingalls | |
| Medical Director | Surgeon Jonathan Letterman | |
| Bureau of Information | Colonel George H. Sharpe | |
| Headquarters escort | ||
| Oneida (New York) Cavalry Company | Captain Daniel P. Mann | |
| Provost Guard | Brigadier General Marsena L. Patrick | |
| 1st Maryland Cavalry Regiment | Lieutenant Colonel James M. Deems | |
| 80th New York Infantry Regiment | Colonel Jacob Hardenberg | |
| 93rd New York Infantry, Cos. AFH&K | Colonel John S. Crocker | |
| Engineer Brigade | Brigadier General Daniel Woodbury | |
| 15th New York Engineer Regiment | Major Walter N. Cassin | |
| 50th New York Engineer Regiment | Lieutenant Colonel William H. Pettes | |
| Regular Engineer Battalion | Captain George Henry Mendell | |
First Corps |
Major General John Newton | |
| 1st Division | Brigadier General Lysander Cutler (to 1/14) Brigadier General J.C. Rice |
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| 2nd Division | Brigadier General John C. Robinson | |
| 3rd Division | Brigadier General John Kenly |
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Second Corps |
Major General Gouverneur Warren (to 1/9) Brigadier General John C. Caldwell (to 1/15) Major General Gouverneur Warren |
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| 1st Division | Colonel P. Frank (to 1/9) Colonel H. L. Brown (to 1/15) Brigadier General John C. Caldwell |
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| 2nd Division | Major General John Gibbon | |
| 3rd Division | Brigadier General Joshua T. Owen (to 1/4) Brigadier General Alexander Hays |
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Third Corps |
Major General William H. French (to 1/28) Major General David Birney |
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| 1st Division | Major General David Birney (^ 1/28) Brigadier General J. H. H. Ward |
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| 2nd Division | Brigadier General Henry Prince | |
| 3rd Division | Brigadier General W. L. Elliott | |
Fifth Corps |
Major General George Sykes |
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| 1st Division | Colonel Jacob B. Sweitzer | |
| 2nd Division | Brigadier General Romeyn B. Ayres | |
| 3rd Division | Brigadier General Samuel W. Crawford | |
Sixth Corps |
Major General John Sedgwick |
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| 1st Division | Brigadier General David A. Russell | |
| 2nd Division | Brigadier General Albion P. Howe (to 1/4) Brigadier General Thomas Neill |
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| 3rd Division | Brigadier General Henry D. Terry | discontinued 1/10 |
Cavalry Corps |
Brigadier General Alfred Pleasonton (to 1/22) Brigadier General David McM. Gregg |
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| 1st Division | Brigadier General Wesley Merritt |
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| 2nd Division | Colonel John P. Taylor (to 1/5) Brigadier General David McM. Gregg (^ 1/22) Colonel John P. Taylor |
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| 3rd Division | Brigadier General Judson Kilpatrick | |
Artillery Reserve |
Brigadier General Robert O. Tyler | |
| 1st Brigade | Lieutenant Colonel Freeman McGilvery | |
| 1st Connecticut Heavy Artillery, Company B | Lieutenant Albert F. Brooker | to 2 Brig, DeRussy’s Div. 22 Corps |
| 1st Connecticut Heavy Artillery, Company M | Captain Franklin A. Pratt | to 2 Brig, DeRussy’s Div. 22 Corps |
| 6th Maine Battery | Lieutenant William H. Rogers | |
| 1st New Jersey Artillery, Battery A | Captain William Hexamer | from unattached (below) |
| 1st New York Artillery, Battery B | Captain Robert E. Rogers | from unattached (below) |
| 5th New York Independent Battery | Captain Elijah D. Taft | |
| 1st West Virginia Artillery, Battery C | Captain Wallace Hill | |
| 2nd Brigade | Captain Elijah D. Taft | |
| 9th Massachusetts Battery | Captain John Bigelow | |
| 1st New York Artillery, Battery K (11th New York Battery attached) |
Lieutenant Edward L Baily | |
| 5th New York Independent Battery | Captain Elijah D. Taft | |
| 15th New York Independent Battery | Captain Patrick Hart | |
| 1st United States Artillery, Battery H | 2nd Lieutenant Philip D. Mason | |
| Unattached | ||
| 1st New Jersey Artillery, Battery A | Captain William Hexamer | to 1 Brig. (above) |
| 1st New York Artillery, Battery B | Captain Robert E. Rogers | to 1 Brig. (above) |
| 1st Ohio Artillery, Battery H | ||
| Ammunition Guard | ||
| 6th New York Heavy Artillery | Colonel J. Howard Kitching | |