| Lothian, South of Annapolis, Maryland |
2 |
| Margate, New Jersey near Atlantic City |
1 |
| Market Square Plaza in Annapolis, Maryland |
2 |
| Maryland |
2 |
| Maryland near Washington, D.C. |
1 |
| Massachusetts |
24 |
| Mattie J.T. Stepanek Park in Rockville, Maryland near Washington, D.C. |
1 |
| McPherson Square in Washington, D.C. |
2 |
| Meridian Hill Park in Washington, D.C. |
4 |
| Montreal, Quebec, Canada |
137 |
| Morehead City, North Carolina |
2 |
| Morgantown, West Virginia |
2 |
| Mount Rainier, Maryland near Washington, D.C. |
1 |
| Mount Royal Park in Montreal, Quebec, Canada |
1 |
| Mount Vernon Square in Washington, D.C. |
2 |
| Muhleberg Park in Washington, DC |
1 |
| Nassau, Bahamas |
3 |
| New Bern, North Carolina |
2 |
| New Carrollton, Maryland near Washington, D.C. |
2 |
| Oak Hill Cemetery in Washington, D.C. |
3 |