| Company A | Cambria Guards | Cambria County, Pa. |
| Company B | Indiana National Guards | Indiana County, Pa. |
| Company C | Dixon Guards | Butler County, Pa. |
| Company D | Conongessing Rangers | Conongessing, Butler Co., Pa. |
| Company E | Washington Blues | Indiana County, Pa. |
| Company F | Union Volunteers | Fayette County, Pa. |
| Company G | Apollo Independent Blues | Apollo, Armstrong Co., Pa. |
| Company H | Westmoreland Blues | Westmoreland County, Pa. |
| Company I | Washington Blues | Washington & Indiana County, Pa. |
| Company K | Brady Guards | Jefferson County, Pa. |
| Field & Staff | | |
| Regimental Band | | |
| Unassigned Men | | |
