| Company A | Brandywine Guards | West Chester, Chester Co., Pa. |
| Company B | Union Guards | Lancaster, Lancaster Co., Pa. |
| Company C | Keystone Rifles, Slifer Phalanx | Media, Delaware Co., Pa. |
| Company D | Safe Harbor Artillery | Safe Harbor, Lancaster Co., & York Co., Pa. |
| Company E | Lancaster Guards | Lancaster, Lancaster Co., Pa. |
| Company F | Rockdale Rifles, Archy Dick Volunteers | Media, Delaware Co., Pa. |
| Company G | Phoenix Artillerists | Phoenixville, Chester Co., Pa. |
| Company H | Carlisle Light Infantry | Carlisle & Papertown, Cumberland Co., Pa. |
| Company I | Carlisle Guards | Carlisle., Cumberland Co., Pa. |
| Company K | Adams Infantry | York Springs, Petersburg and Gettysburg, Adams Co., Pa. |
| Field & Staff | | |
| Regimental Band | | |
| Unassigned Men | | |
