Subject - Geographic
- Mackinac Island (Mich.)2
- Magnolia Plantation (Charleston County, S.C.)2
- Mahaska County (Iowa)2
- Mami (Fla.)2
- Manchester (England)2
- Martinique.2
- Maryland2
- Maryland--History--Civil War, 1861-18652
- Marysville (Calif.)2
- Maury County (Tenn.)2
- Meadville (Pa.)2
- Meridian (Miss.)2
- Mexico2
- Milford (Conn.)2
- Milner (Ga.)2
- Mineral Wells (Tex.)2
- Minnesota.2
- Monroe County (Ga.)2
- Monticello (Fla.)2
- Monticello (Va.)2