| Name | Relationship with Steven Prater | Civil | Canon |
| Mallett, Elizabeth | 12th great-grandmother | XIV | 14 |
| Malone, Martha Lela | Wife of the 2nd cousin 4 times removed | | |
| Marshall, Bridget Nicole | 5th cousin once removed | XIII | 7 |
| Marshall, Courtney | 5th cousin once removed | XIII | 7 |
| Marshall, Frank Elmer (Jake) | Husband of the 3rd cousin 3 times removed | | |
| Marshall, Gerald Scott | 4th cousin twice removed | XII | 7 |
| Marshall, Jane Allison | 4th cousin twice removed | XII | 7 |
| Marshall, Joan Sherry | 4th cousin twice removed | XII | 7 |
| Marshall, John Corey | 4th cousin twice removed | XII | 7 |
| Marshall, Leslie Ellen | 4th cousin twice removed | XII | 7 |
| Marshall, Tanner John | 5th cousin once removed | XIII | 7 |
| Martin, Carl Suggs | 3rd cousin 3 times removed | XI | 7 |
| Martin, Charles Manuel | Husband of the aunt | | |
| Martin, Judy Virginia | 4th cousin twice removed | XII | 7 |
| Martin, Kathleen (Peggy) | 3rd cousin 3 times removed | XI | 7 |
| Martin, Sarah Cordelia | 3rd cousin 3 times removed | XI | 7 |
| Martin, William Walter | Husband of the 2nd cousin 4 times removed | | |
| Mary | 6th great-grandmother | VIII | 8 |
| Mary | Wife of the 8th great-grandfather | | |
| Mary | Wife of the 7th great-granduncle | | |
| Maury, James D. | Husband of the 1st cousin 6 times removed | | |
| Maybury, Francis | Wife of the half 7th great-granduncle | | |
| McClead, Ruth Jane | Wife of the 3rd cousin 3 times removed | | |
| McCraw, Iva May | Wife of the 4th cousin 3 times removed | | |
| McCuiston, Mitchell | Husband of the 1st cousin 5 times removed | | |
| McDonald, Henry Dearborn | 2nd cousin 4 times removed | X | 7 |
| McDonald, Henry Graham | Husband of the 1st cousin 5 times removed | | |
| McDonald, James T. | 2nd cousin 4 times removed | X | 7 |
| McDonald, William Johnson | 2nd cousin 4 times removed | X | 7 |
| McGilvary, Cynthia Louise | Wife | | |
| McGowan, Harold George (Sonny) | 2nd cousin once removed | VII | 4 |
| McGowan, Harold George Fletcher | Husband of the 1st cousin twice removed | | |
| McGowan, Kay Ardelle | 2nd cousin once removed | VII | 4 |
| McGrandy, Flora Lella | 2nd cousin 4 times removed | X | 7 |
| McGrandy, Grace L. | 2nd cousin 4 times removed | X | 7 |
| McGrandy, Joseph | Husband of the 1st cousin 5 times removed | | |
| McGrandy, Lois Alberta | 2nd cousin 4 times removed | X | 7 |
| McGrandy, Maud M. | 2nd cousin 4 times removed | X | 7 |
| McGrandy, Roy Harold | 2nd cousin 4 times removed | X | 7 |
| McKay, Jeff | Husband of the 1st cousin | | |
| McKay, Koshare Christina | 1st cousin once removed | V | 3 |
| McKay, Lyle Jane | 8th great-grandmother | X | 10 |
| McQuiad, Doris Esther | Wife of the 2nd cousin twice removed | | |
| McQuone, Hazel Bernice | Wife of the 3rd cousin 3 times removed | | |
| Mensinger, Shirley | Wife of the half 5th cousin once removed | | |
| Mercer, Abner B. | Husband of the 1st cousin 5 times removed | | |
| Mercer, Elizabeth | Wife of the half 1st cousin 5 times removed | | |
| Mercer, John A. | Half 2nd cousin 4 times removed | X | 7 |
| Mercer, Joseph Alexander | Husband of the half 1st cousin 5 times removed | | |
| Mercer, Laura | Half 2nd cousin 4 times removed | X | 7 |