< to June • July 1864 • to August >
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 | ||
| Chief Quartermaster | Lieutenant Colonel Rufus Ingalls | |
| Medical Director | Surgeon Jonathan Letterman | |
| Bureau of Military Information | Colonel George H. Sharpe | |
| Headquarters escort | ||
| Oneida (New York) Cavalry Company | Captain Daniel P. Mann | |
| 4th United States Infantry Regiment | ||
| Provost Guard | Brigadier General Marsena L. Patrick | |
| 1st Massachusetts Cavalry, Cos. C&D | ||
| 80th New York Infantry Regiment | Colonel Jacob Hardenberg | |
| 3rd Pennsylvania Cavalry Regiment | ||
| 68th Pennsylvania Infantry Regiment | ||
| 114th Pennsylvania Infantry Regiment | ||
| 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 | |
Second Corps | 
Major General Winfield S. Hancock  | 
|
| 1st Division | Brigadier General Francis C. Barlow (to 7/29) Brigadier General Nelson Miles  | 
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| 2nd Division | Major General John Gibbon (to 7/31) Colonel T. A. Smythe  | 
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| 3rd Division | Major General David B. Birney (to 7/23) Brigadier General Gershom Mott  | 
|
Fifth Corps | 
Major General Gouverneur K. Warren | |
| 1st Division | Brigadier General Charles Griffin (to 7/21) Brigadier General Joseph J. Bartlett  | 
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| 2nd Division | Brigadier General Romeyn B. Ayres | |
| 3rd Division | Brigadier General Samuel W. Crawford | |
| 4th Division | Brigadier General Lysander Cutler | |
Sixth Corps | 
Major General Horatio Wright | to Army of the Shenendoah 7/8 | 
| 1st Division | Brigadier General David A. Russell | |
| 2nd Division | Brigadier General George W. Getty | |
| 3rd Division | Brigadier General James B. Ricketts | |
Ninth Corps | 
Major General Ambrose E. Burnside | 
|
| 1st Division | Brigadier General James Ledlie | |
| 2nd Division | Brigadier General Robert B. Potter | |
| 3rd Division | Brigadier General Orlando B. Wilcox | |
| 4th Division | Brigadier General Edward Ferrero (to 7/21) Brigadier General Julius White (to 7/29)  | 
|
Cavalry Corps | 
Major General Philip H. Sheridan | 
|
| 1st Division | Brigadier General A. T. A. Torbert | |
| 2nd Division | Brigadier General David McM. Gregg | |
| 3rd Division | Brigadier General James H. Wilson | |
Artillery Reserve | 
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| 1st New Jersey Artillery, Battery A | ||
| 3rd New York Independent Battery | from 6 Corps Artillery | |
| 4th New York Heavy Artillery | from 2nd Corps | |
| 15th New York Heavy Artillery, Co. F | ||
| 1st Rhode Island Artillery, Battery E | from 6 Corps Artillery | |
