| Company A | Armstrong Rifles | Armstrong & Butler County, Pa. |
| Company B | Jefferson Riflemen | Allegheny County, Pa. |
| Company C | Anderson Cadets | Allegheny County, Pa. |
| Company D | Brownsville Greys | Brownsville, Fayette County, Pa. |
| Company E | Duncan Guards | Allegheny & Philadelphia County, Pa. |
| Company F | Hopewell Rifles | Bedford County, Pa. |
| Company G | Fayette Guards | Fayette County, Pa. |
| Company H | Clarion Union Guards | Clarion County, Pa. |
| Company I | Greene County Rangers | Greene County, Pa. |
| Company K | Hopkins Infantry | Washington County, Pa. |
| Field & Staff | | |
| Regimental Band | | |
| Unassigned Men | | |
