| Name | Birth date | Birth location | Marriage date | Death date | Death location |
| Margaret | Abt 1043 | Wessex, England | 1069 | November 16, 1093 | Edinburgh Castle, Scotland |
| Margaret | Abt 1280 | England | 1316 | | |
| Margaret | Unknown | Unknown | | Unknown | Unknown |
| Margaret | Unknown | | | Unknown | |
| Margaret | Unknown | | | Unknown | |
| Margaret | Unknown | | | Unknown | |
| Margaretha | | | | | |
| Margery | | | | | |
| Margretha | | | | | |
| Marguerite | | | | | |
| Maria | Unknown | Germany | | Unknown | Germany |
| Marie | | | | | |
| Marie | | | | | |
| Marilyn | 1943 | | | | |
| Amanda May Maring | October 11, 1880 | Putnam County, Missouri | November 28, 1900 | February 04, 1975 | Unionville, Putnam County, Missouri |
| Kathryn Marie Maring | June 16, 1897 | Liberty Twp, Putnam County, Missouri | March 27, 1920 | May 05, 1990 | Centerville, Iowa |
| Mary E. Maring | | | September 06, 1868 | | |
| Moses Monroe Maring | October 09, 1849 | Belmont County, Ohio | November 02, 1876 | January 09, 1923 | Exline, Iowa |
| Olive Marion | | | | | |
| Marion? | | | | | |
| Marjorie | | | | | |
| Mark | 1956 | | | | |
| Anthony Mark | | | | | |
| Albrecht Markart | Abt 1300 | Germany | | Unknown | Germany |
| Ed Markett | | | February 14, 1986 | | |
| Emma Markland | August 10, 1880 | | March 17, 1901 | December 12, 1904 | |
| Bertha Markley | | | | | |
| Austin Taylor Marks | December 21, 1993 | | | | |
| Daniel Joseph Marks | | | January 04, 1986 | | |
| Marlene | | | | | |
| Carrie Marley | | | | | |
| Walter Marquardt | | | October 10, 1930 | | |
| Donna Marquis | September 04, 1948 | Des Moines, Polk County, Iowa | June 07, 1975 | | |
| Ruth Marrifield | | | | | |
| Bertha Marrs | Unknown | | | Unknown | |
| Elva Marrs | Unknown | | | Unknown | |
| Hugh Marrs | Unknown | | | Unknown | |
| Lafayette Marrs | Unknown | | | Unknown | |
| Lester Marrs | Unknown | | | | |
| Ona Marrs | Unknown | | | Unknown | |
| Esther Eliza Marsh | | | December 18, 1859 | | |
| John Griffith Marsh | | | September 29, 1941 | | |
| Joshua Marsh | | | | | |
| Lindel Marsh | | | October 07, 1978 | | |
| Lorraine Ann Marsh | December 04, 1945 | | | | |
| Maryl Janette Marsh | July 18, 1949 | National City, California | | | |
| Nichole Marsh | | | | | |
| Theresa Gay Marsh | July 06, 1941 | National City, California | February 20, 1960 | | |
| Althea Marshall | | | | Abt 1776 | |
| Bonnie Marshall | May 21, 1944 | | August 16, 1966 | December 18, 1996 | Oregon |