| Owner | Count | 1.
| Marxuach, Acisclo, San Juan, Puerto Rico | 1 | 2.
| Marxuach de Fossas, Jeannette, San Juan, Puerto Rico | 1 | 3.
| Marxuach, Josefina, | 1 | 4.
| Marxuach, Josefina, Puerto Rico | 1 | 5.
| Mary Allis, Southport, Connecticut | 1 | 6.
| Mary Baldwin College, Staunton, Virginia | 1 | 7.
| Mary Ellen McCormack Housing, Boston, Massachusetts | 1 | 8.
| Mary Evans Getman, St. Johnsville, New York | 1 | 9.
| Mary French Academy, Decatur, Illinois | 1 | 10.
| Mary French Academy, Decatur, Illinois | 1 | 11.
| Mary, Help of Christians Church, Mariah Hill, Indiana | 1 | 12.
| Mary Hotchkiss Park, Santa Monica, California | 1 | 13.
| Mary Immaculate Hospital, Administration, Newport News, Virginia | 1 | 14.
| Mary Institute, St. Louis, Missouri | 3 | 15.
| Mary Lou & Bert Hickman, West Dennis, Massachusetts | 1 | 16.
| Mary Lou Retton Youth Park, Monongah West Virginia | 1 | 17.
| Mary Matton Chapter, Dar, Amherst, Massachusetts | 2 | 18.
| Mary Mattoon Chapter, Dar, Amherst, Massachusetts | 1 | 19.
| Mary Mattoon Chapter, Dar, Amherst, Massachusetts | 3 | 20.
| Mary Meeker Cramer Museum, Camden, Maine | 2 | 21.
| Mary, Mother of the Church Parish, Rectory, Newton, New Hampshire | 1 | 22.
| Mary-Powel Thomas, New York, New York | 1 | 23.
| Mary Queen of Peace Church, Danville, Indiana | 1 | 24.
| Mary Queen of Peace, Salem, New Hampshire | 1 | 25.
| Mary Queen of Viet Nam Church, New Orleans, Louisiana | 1 | 26.
| Mary R. Atwood Antiques, Watertown, Connecticut | 1 | 27.
| Mary Ran Gallery, Cincinnati, Ohio | 252 | 28.
| Mary Ryan Gallery, New York, New York | 1 | 29.
| Mary Vestal Park, Knoxville, Tennessee | 1 | 30.
| Mary Wales Holbrook Park, Holbrook, Massachusetts | 1 | 31.
| Mary Washington College, Fredericksburg, Virginia | 0 | 32.
| See University of Mary Washington, Fredericksburg, Virginia | 137 | 33.
| Mary Weems Parker Memorial Library, Heidelberg, Mississippi | 1 | 34.
| Maryhill Museum of Art, Goldendale, Washington | 33 | 35.
| Maryknoll Grade School, School Office, Honolulu, Hawaii | 1 | 36.
| Maryland Aviation Administration, BWI Airport, Maryland | 1 | 37.
| Maryland Center for History and Culture, Baltimore, Maryland | 1539 | 38.
| Maryland Centre, St. Louis, Missouri | 1 | 39.
| Maryland Department of General Services, Maryland | 1 | 40.
| Maryland Farms, Brentwood, Tennessee | 3 | 41.
| Maryland Farms, Brentwood, Tennessee | 1 | 42.
| Maryland Farms, Brentwood, Tennessee | 2 | 43.
| Maryland Historical Society, Baltimore, Maryland | 0 | 44.
| See Maryland Center for History and Culture, Baltimore, Maryland | 1539 | 45.
| Maryland Historical Trust, Annapolis, Maryland | 2 | 46.
| Maryland Institute, College of Art, Baltimore, Maryland | 11 | 47.
| Maryland Institute, College of Art, Maintenance, Baltimore, Maryland | 2 | 48.
| Maryland Mass Transit Administration, Baltimore, Maryland | 1 | 49.
| Maryland Mass Transit Administration, Engineering, Baltimore, Maryland | 2 | 50.
| Maryland-National Capital Park and Planning Commission, Montgomery County Department of Parks, Silver Spring, Maryland | 26 | 51.
| Maryland National Guard Armory, Elkton, Maryland | 1 | 52.
| Maryland National Guard, Fifth Regiment Armory, Baltimore, Maryland | 1 |
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