- Marion (S.C.)1
- Marion County (S.C)5
- Marion County (S.C.)21
- Marion County (SC)1
- Marlboro County (S.C.)4
- Massachusetts, United States1
- Mayesville (South Carolina)1
- McClellanville, Charleston County, South Carolina, United States1
- McCormick County (S.C.)1
- Mecklenburg County (N.C.)1
- Medford2
- Memphis, TN2
- Mendota2
- Mepkin Plantation, Berkley County, South Carolina, United States1
- Meuse River1
- Mexico Plantation (S.C.)1
- Middlebrook, Somerset County, New Jersey, United States3
- Midlands2,218
- Midlands, Lowcountry1
- Mill Prison, Plymouth, England2