| GR Book # | Page # | Instr # | Surname | Given-names | Residence | Will Date | Reg. Date | Death Date |
| 8-2nd | 551 | 1814 | MANION | Johanna | Toronto | 1925-10-13 | 1927-03-21 | 1926-10-07 |
| 10-1st | 244 | 2258 | MANN | Donald | St. Joseph Twp. | Adm | 1932-04-22 | 1931-12-22 |
| 11-2nd | 563 | 2930 | MANN | Mark E. | Sault Ste. Marie, ON | 1918-01-23 | 1940-08-07 | 1921-03-04 |
| 8-1st | 172 | 1612 | MANN | Mary | Sault Ste. Marie, ON | 1902-09-05 | 1924-06-06 | 1924-03-09 |
| 11-1st | 259 | 2741 | MANN | Mary C. | Sault Ste. Marie, ON | 1937-06-10 | 1938-05-11 | 1938-04-12 |
| 10-1st | 274 | 2278 | MANN | William M. | Sault Ste. Marie, ON | 1926-02-26 | 1932-07-14 | 1932-05-12 |
| 12 | 205 | 3233 | MANNAH | Edward William | Spanish | Adm | 1943-08-25 | 1933-11-04 |
| 3 | 271 | 325 | MANSFIELD | James P. | Detroit, Wayne Co. | 1855-08-15 | 1901-06-06 | 1883-04-27 |
| 12 | 393 | 3396 | MANUEL | Eric | Sault Ste. Marie, ON | Adm | 1945-01-12 | 1944-07-08 |
| 12 | 557 | 3515 | MANZO | Guiseppe\ Joseph | Sault Ste. Marie, ON | 1937-03-02 | 1946-01-09 | 1937-05-19 |
| 13-1st | 34 | 3649 | MANZUTTI | Giovanni | Sault Ste. Marie, ON | 1946-10-10 | 1947-01-23 | 1946-11-06 |
| 12 | 39 | 3091 | MARCOUX | Joseph | Sault Ste. Marie, ON | 1942-02-12 | 1942-05-09 | 1942-02-23 |
| 10-1st | 227 | 2248 | MARINOVICH | John | Sault Ste. Marie, ON | Adm | 1932-02-11 | 1931-08-26 |
| 13-2nd | 4070 | MARINOVICH | Joseph | Sault Ste. Marie, ON | 1948-11-24 | 1950-03-25 | 1948-12-16 | |
| 4 | 193 | 460 | MARK | Harriett Ann | Kinmount, Victoria Co. | Adm | 1905-03-04 | 1904-10-07 |
| 10-1st | 30 | 2145 | MARKLE | Frank | Thessalon, town | Adm | 1930-12-14 | 1927-04-30 |
| 12 | 141 | 3181 | MARKLE | George Ryerson | Sault Ste. Marie, ON | 1931-11-02 | 1943-02-11 | 1942-01-16 |
| 10-2nd | 512 | 2427 | MARKLE | William Robert | Sault Ste. Marie, ON | Adm | 1934-10-06 | 1926-04-18 |
| 4 | 414 | 587 | MARKS | George Thomas | Port Arthur | 1903-03-02 | 1909-10-18 | 1907-03-21 |
| 4 | 20 | 390 | MARKS | John | St. Joseph Island | Adm | 1902-11-10 | 1893-08-03 |
| 12 | 91 | 3133 | MARLIA | Hannah Wightman | Sault Ste. Marie, ON | Adm | 1942-08-12 | 1938-04-04 |
| 9-2nd | 338 | 2000 | MARLOW | John | Sault Ste. Marie, ON | 1925-09-29 | 1929-04-19 | 1928-09-16 |
| 6 | 435 | 1168 | MARLS | Mark | Sault Ste. Marie, ON | 1915-08-28 | 1919-06-25 | 1915-11-07 |
| 7-2nd | 393 | 1413 | MARR | George | Sault Ste. Marie, ON | 1921-06-08 | 1922-01-17 | 1921-06-26 |
| 12 | 653 | 3584 | MARRAY | James William | MacLennan Village | Adm | 1946-07-18 | 1944-09-16 |
| 7-1st | 136 | 1274 | MARRIN | Margaret Jane | Sault Ste. Marie, ON | 1919-07-03 | 1920-06-17 | 1920-05-03 |
| 7-1st | 1 | 1200 | MARROTA | Gaetano | Korah Twp. | Adm | 1919-10-10 | 1916-09-21 |
| 11-1st | 157 | 2667 | MARSAW | Joseph Isaiah | Thessalon, town | 1926-10-19 | 1937-08-03 | 1929-07-04 |
| 13-2nd | 704 | 3867 | MARSHALL | Albert | Parkinson Twp. | 1948-05-22 | 1948-11-06 | 1948-05-24 |
| 9-2nd | 513 | 2087 | MARSHALL | Alice Maud | Sault Ste. Marie, ON | 1913-00-20 | 1930-05-19 | 1930-03-21 |
| 6 | 33 | 967 | MARSHALL | Charles | Parkinson Twp. | 1915-05-24 | 1916-11-23 | 1916-08-20 |
| 10-1st | 26 | 2141 | MARSHALL | Chester | Korah Twp. | Adm | 1930-11-26 | 1930-08-01 |
| 10-2nd | 563 | 2458 | MARSHALL | Clarence William | Sault Ste. Marie, ON | Adm | 1935-03-18 | 1931-02-11 |
| 13-2nd | 4038 | MARSHALL | Emma | Korah Twp. | 1930-10-29 | 1950-02-14 | 1949-11-25 | |
| 12 | 168 | 3205 | MARSHALL | Harry Harbour | Owen Sound | 1943-05-22 | 1943-05-31 | |
| 10-1st | 27 | 2142 | MARSHALL | Henry | Korah Twp. | Adm | 1930-11-26 | 1910-06-06 |
| 12 | 380 | 3384 | MARSHALL | Henry Harbour | Owen Sound | 1931-01-12 | 1944-11-23 | 1944-09-06 |
| 12 | 168 | 3205 | MARSHALL | Joseph | Blind River | 1943-01-04 | 1943-05-31 | 1943-01-04 |
| 5-1st | 250 | 756 | MARSHALL | Leslie Wallace | Sault Ste. Marie, ON | Adm | 1913-01-25 | 1912-12-31 |
| 13-1st | 109 | 3647 | MARSHALL | Margaret | Korah Twp. | Adm | 1947-01-22 | 1943-04-11 |
| 6 | 94 | 1003 | MARSHALL | Robert | Korah Twp. | 1900-10-10 | 1917-06-19 | 1913-01-27 |
| 11-2nd | 433 | 2847 | MARSHALL | Robert | Korah Twp. | 1928-11-23 | 1939-07-27 | 1939-06-20 |
| 11-2nd | 422 | 2840 | MARSHALL | William | Sault Ste. Marie, ON | 1931-12-10 | 1939-06-23 | 1939-06-19 |
| 11-2nd | 599 | 2957 | MARSHALL | William Henry | Korah Twp. | 1928-07-10 | 1940-11-20 | 1940-08-24 |
| 9-2nd | 440 | 2049 | MARTEL | Alfred Tremblay | Sault Ste. Marie, ON | 1923-09-26 | 1929-11-15 | 1929-10-28 |
| 7-1st | 93 | 1249 | MARTEL | Eugenie | Sault Ste. Marie, ON | 1920-01-27 | 1920-03-30 | 1920-01-28 |
| 6 | 119 | 1018 | MARTELL | Mederic | Sault Ste. Marie, ON | 1913-04-25 | 1917-08-30 | 1914-04-25 |
| 4 | 199 | 465 | MARTIN | Edward | Hamilton | will missing | 1905-05-06 | 1904-02-14 |
| 7-1st | 32 | 1219 | MARTIN | Frederick John Strange | Sault Ste. Marie, ON | 1916-07-24 | 1919-12-17 | 1918-08-30 |
| 10-1st | 158 | 2209 | MARTIN | Joseph Hilliard | Sault Ste. Marie, ON | Adm | 1931-08-08 | 1927-07-10 |
| 8-2nd | 554 | 1815 | MARTIN | Michael | Toronto | 1926-11-02 | 1927-03-21 | 1926-12-19 |
| 13-2nd | 4112 | MARTIN | Mina | Los Angles | 1939-02-08 | 1950-06-27 | 1945-07-20 | |
| 5-2nd | 344 | 794 | MARTIN | Sebrina Jane | Sault Ste. Marie, ON | 1912-05-13 | 1913-10-03 | 1913-07-30 |
| 11-2nd | 530 | 2909 | MARTIN | William Henry | Sault Ste. Marie, ON | 1930-12-09 | 1940-05-07 | 1936-08-20 |
| 10-2nd | 365 | 2331 | MARTINEAU | Kathryne | Thessalon, town | 1928-11-22 | 1933-05-23 | 1933-01-01 |
| 6 | 186 | 1052 | MASON | Blackburn | Korah | 1909-02-11 | 1918-01-30 | 1917-10-16 |
| 11-2nd | 409 | 2830 | MASON | James | Sault Ste. Marie, ON | 1938-07-07 | 1939-05-18 | 1938-08-09 |