Gettysburg Battle Lineup – July 1. This is a listing of the Union and Confederate corps commanders for the Battle of Gettysburg on July 1, 1863.
July 1, 1863: Lineup | In a Nutshell | Quick Summary
July 2, 1863: Lineup | In a Nutshell | Quick Summary
July 3, 1863: Lineup | In a Nutshell | Quick Summary


Union Commanders
| AOP Army/Corps Commander | AOP Corps (Order of Battle links) | |
|---|---|---|
| Gen. George G. Meade | Army | |
| Brig. Gen. John Buford | For Alfred Pleasonton | Cavalry |
| Maj. Gen. John Reynolds | Killed July 1 | 1st Corps |
| Maj. Gen. Abner Doubleday | Replaced Reynolds | 1st Corps |
| Maj. Gen. Oliver O. Howard | Replaced Doubleday | 11th and 1st Corps |
| Maj. Gen. Winfield S. Hancock * | Evening arrival | 2nd Corps |
| Maj. Gen. Daniel E. Sickles * | Evening arrival | 3rd Corps |
| Maj. Gen. George Sykes * | Evening arrival | 5th Corps |
| Maj. Gen. John Sedgwick * | Evening arrival | 6th Corps |
| Maj. Gen. Henry W. Slocum * | Evening arrival | 12th Corps |
| * = Did not fight July 1. |
Confederate Commanders
| ANV Army/Corps Commander | ANV Division Commander (Order of Battle link) | ANV Corps (Order of Battle link) |
|---|---|---|
| Gen. Robert E. Lee | Army | |
| Lt. Gen. Ambrose P. Hill | Hill | |
| Maj. Gen. Henry Heth | Hill | |
| Brig. Gen. William D. Pender | Hill | |
| Maj. Gen Richard H. Anderson* | Hill | |
| Lt. Gen. Richard S. Ewell | Ewell | |
| Maj. Gen. Robert E. Rodes | Ewell | |
| Maj. Gen. Jubal Early | Ewell | |
| Maj. Gen. Edward Johnson* | Ewell | |
| Lt. Gen. James Longstreet* | Longstreet | |
| Maj. Gen. John B. Hood* | Longstreet | |
| Maj. Gen. Lafayette McLaws* | Longstreet | |
| Maj. Gen. George E. Pickett* | Longstreet | |
| * = Did not fight July 1. |