The casualties were:
CONFEDERATE.[140]
| First Corps | 7,539 | |
| Second Corps | 5,937 | |
| Third Corps | 6,735 | |
| Cavalry | 1,426 | |
| Aggregate | 21,637 |
UNION.[141]
| First Corps | 6,059 | |
| Second Corps | 4,369 | |
| Third Corps | 4,211 | |
| Fifth Corps | 2,187 | |
| Sixth Corps | 242 | |
| Eleventh Corps | 3,801 | |
| Twelfth Corps | 1,082 | |
| Cavalry | 1,094 | |
| Staff | 4 | |
| Aggregate | 23,049 |
The organization of the contending armies at Gettysburg was as follows:
Army of Northern Virginia, General Robert E. Lee, commanding.
First Army Corps, Lieutenant-General James Longstreet.
McLaws’s Division, Maj.-Gen. Lafayette McLaws:—Kershaw’s Brigade, Brig.-Gen. J. B. Kershaw; 2d S. C., Col. J. D. Kennedy, Lieut.-Col. F. Gaillard; 3d S. C., Maj. R. C. Maffett, Col. J. D. Nance; 7th S. C., Col. D. Wyatt Aiken; 8th S. C., Col. J. W. Henagan; 15th S. C., Col. W. D. De Saussure, Maj. William M. Gist; 3d S. C. Battn., Lieut.-Col. W. G. Rice. Barksdale’s Brigade, Brig.-Gen. William Barksdale, Col. B. G. Humphreys; 13th Miss., Col. J. W. Carter; 17th Miss., Col. W. D. Holder, Lieut.-Col. John C. Fiser; 18th Miss., Col. T. M. Griffin, Lieut.-Col. W. H. Luse; 21st Miss., Col. B. G. Humphreys. Semmes’s Brigade,[142] Brig.-Gen. P. J. Semmes, Col. Goode Bryan; 10th Ga., Col. John B. Weems; 50th Ga., Col. W. R. Manning; 51st Ga., Col. E. Ball; 53d Ga., Col. James P. Simms. Wofford’s Brigade, Brig.-Gen. W. T. Wofford; 16th Ga., Col. Goode Bryan; 18th Ga., Lieut.-Col. S. Z. Ruff; 24th Ga., Col. Robert McMillan; Cobb’s (Ga.) Legion, Lieut.-Col. Luther J. Glenn; Phillips (Ga.) Legion, Lieut.-Col. E. S. Barclay. Artillery, Col. H. C. Cabell; 1st N. C. Art., Batt. A, Capt. B. C. Manly; Pulaski (Ga.) Art., Capt. J. C. Fraser, Lieut. W. J. Furlong; 1st Richmond Howitzers, Capt. E. S. McCarthy; Troup (Ga.) Art., Capt. H. H. Carlton, Lieut. C. W. Motes.