| Name | Birth date | Relationship with Robert Frei |
|---|
| Maher, Rachelle Lynn | Private | 3rd cousin twice removed of the wife |
| Mahoney, Lisa | Private | Wife of the 1st cousin |
| Mailloux, Jacques | | 8th great-grandfather of the wife |
| Mailly, de | 1430 | 15th great-grandfather |
| Mainville, Constance | | 4th great-grandmother of the wife |
| Manceau, Jacques | | 7th great-grandfather of the wife |
| Manceau, Marie Anne | 26 Oct 1675 | 6th great-grandmother of the wife |
| Manning, Edgar | | Husband of the 2nd cousin 4 times removed |
| Mape, Flora B. | | Wife of the 1st cousin 4 times removed |
| Margaret | Private | Wife of the half 2nd cousin |
| Maria | Abt. 1530 | 12th great-grandmother |
| Marisa A. | Private | 3rd cousin twice removed of the wife |
| Maritti, Nancy | Private | 2nd cousin once removed |
| Maritti, Tom | | Husband of the 1st cousin twice removed |
| Marlene | Private | Wife of the 1st cousin once removed |
| Marsh, Daniel James | Private | 2nd cousin |
| Marsh, Hannah | | Wife of the 1st cousin 10 times removed |
| Marshall, John | | Husband of the 3rd great-grandaunt |
| Marshall, Vera Elanor | Abt. 1905 | 4th cousin once removed of the wife |
| Marsolet, Nicolas | | 9th great-grandfather of the wife |
| Martha | Abt. 1576 | 11th great-grandmother |
| Martin, Martha | Private | Wife of the 2nd cousin |
| Marty | Private | Wife of the 2nd cousin |
| Marx, Frank | 01 Feb 1890 | Husband of the 1st cousin twice removed |
| Marx, Mary | Private | 2nd cousin once removed |
| Mary | | 9th great-grandmother |
| Mary | | 11th great-grandmother |
| Mary | | 9th great-grandmother of the wife |
| Mary | Abt. 1590 | 11th great-grandmother |
| Mary | Abt. 1623 | 9th great-grandmother of the wife |
| Mary | Abt. 1650 | Wife of the 8th great-granduncle |
| Mary | Abt. 1690 | 8th great-grandmother |
| Mary | Private | 1st cousin twice removed |
| Mason, Ada | Abt. 1852 | Wife of the 1st cousin 5 times removed |
| Mason, Gary Lynn | Private | 3rd cousin of the wife |
| Mason, Gordon | Private | 3rd cousin of the wife |
| Mason, Marcia Ann | Private | 3rd cousin of the wife |
| Mason, Michael | Private | 3rd cousin of the wife |
| Mason, Nellie | 30 Oct 1887 | Wife of the great-granduncle |
| Matson, Debra | Private | 4th cousin once removed of the wife |
| Matson, Larry | Private | 4th cousin once removed of the wife |
| Matson, Phyllis | | 4th cousin once removed of the wife |
| Matson, Wayne | Private | 4th cousin once removed of the wife |
| Maybohm, Metta | 20 Dec 1742 | 4th great-grandmother of the wife |
| Mayo, Dorothy | 30 Nov 1894 | 4th cousin twice removed of the wife |
| Mayo, Marguerite | 28 Mar 1892 | 4th cousin twice removed of the wife |
| Mayo, Mary Louise | Private | 4th cousin twice removed of the wife |
| Mayo, Robert Sprague | 19 Nov 1900 | 4th cousin twice removed of the wife |
| McArthur, Brian James | Private | 5th cousin once removed of the wife |
| McArthur, David Scott | Private | 5th cousin once removed of the wife |
