Places
- Little Ridge.1
- London (England)1
- Louisville (Ky.)1
- Marietta (Ohio)3
- Marion County (W. Va.)3
- Martinsburg (W. Va.)3
- Martinsburg.1
- McKeesport (Pa.)1
- Meadow Bluff (W. Va.)1
- Michigan1
- Mississippi River1
- Monongah (W. Va.)1
- Monongahela River (W. Va. and Pa.)5
- Monongahela River Valley (W. Va. and Pa.)2
- Monongalia County (W. Va.)3