Places
- London (England)1
- Louisville (Ky.)2
- Marietta (Ohio)4
- Marion County (W. Va.)3
- Martinsburg (W. Va.)1
- McKeesport (Pa.)1
- Michigan1
- Missouri1
- Monongah (W. Va.)1
- Monongahela River (W. Va. and Pa.)1
- Monongahela River Valley (W. Va. and Pa.)2
- Monongalia County (W. Va.)1
- Moorefield (W. Va.)1
- New Orleans (La.)2
- New York (State)1