- Log buildings--West Virginia--Cox's Mill.1
- Log cabins.3
- Mills and mill-work--Maryland--Middle River.1
- Mills and mill-work.2
- Non-WV--Maryland.20
- Non-WV--Massachusetts, New Jersey, New York, and Ohio.11
- Photographers Collections--Biscoe, Thomas, and Walter.165
- Piedmont, Battle of, Piedmont, Va., 1864.4
- Post office buildings--West Virginia--Cox's Mill.1
- Psychiatric hospitals--West Virginia--Weston.1
- Quarries and quarrying.1
- Railroad bridges--Virginia--Shenandoah River, North Fork.1
- Rich Mountain, Battle of, W. Va., 1861.8
- River boats--Ohio--Muskingum River.1
- Rivers.4
- Roads--West Virginia--Auburn.1
- Rooms.1
- Rural roads--Maryland.2
- Rural roads--Pennsylvania.1
- Rural roads.1