| Name | Line | Page | District | Soundex
| Mackey, Henry J. | 49 | 1A | 113 | M200
| | Mackey, Samuel | 14 | 6A | 115 | M200
| | Maclain, Matthew D. | 16 | 4A | 118 | M245
| | Macleod, Elizabeth | 92 | 14B | 119 | M243
| | Macleod, John C. | 91 | 14B | 119 | M243
| | Madsan, Henry | 77 | 14B | 120 | M325
| | Madsem, Soren H. | 81 | 11B | 116 | M325
| | Madsen, Dorthea | 80 | 8B | 118 | M325
| | Madsen, Erastus | 13 | 6A | 114 | M325
| | Madsen, George S. | 88 | 1B | 112 | M325
| | Madsen, Hyrum N. | 95 | 3B | 116 | M325
| | Madsen, J. P. | 24 | 14A | 120 | M325
| | Madsen, Leon | 62 | 1B | 114 | M325
| | Madsen, Marie | 73 | 3B | 114 | M325
| | Madsen, Mrytle | 40 | 1A | 112 | M325
| | Madsen, Nephi | 36 | 14A | 116 | M325
| | Madsen, P. H. | 5 | 2A | 120 | M325
| | Madsen, Paul | 6 | 2A | 117 | M325
| | Madson, Matilda | 31 | 10A | 120 | M325
| | Madson, Sarah V. | 33 | 6A | 116 | M325
| | Madson, Soren C. | 49 | 7A | 117 | M325
| | Madson, Willie | 78 | 3B | 120 | M325
| | Magleby, A. Woodruff | 28 | 18A | 116 | M241
| | Magleby, Alma | 19 | 18A | 116 | M241
| | Magleby, Anna L. | 89 | 5B | 116 | M241
| | Magleby, Ephiem | 9 | 17A | 16 | M241
| | Magleby, Harold J. | 18 | 9A | 116 | M241
| | Magleby, Heber L. | 59 | 9B | 116 | M241
| | Magleby, Jacob | 8 | 13A | 116 | M241
| | Magleby, Milton | 31 | 18A | 116 | M241
| | Magleby, Owen | 14 | 11A | 116 | M241
| | Magleby, Parley | 29 | 13A | 119 | M241
| | Malmquist, August | 64 | 11B | 112 | M452
| | Malouf, Charles | 80 | 11B | 118 | M410
| | Malouf, George | 75 | 11B | 118 | M410
| | Malouf, Nasif M. | 72 | 5B | 118 | M410
| | Malouf, William | 27 | 12A | 118 | M410
| | Manning, Arthur L | 51 | 16B | 119 | M552
| | Manning, George | 90 | 4B | 120 | M552
| | Mansell, Elsie | 16 | 11A | 119 | M524
| | Mansor, William S. | 7 | 3A | 116 | M526
| | Manuel, Salazar | 13 | 6A | 116 | M540
| | Manwill, Elden M. | 32 | 2A | 113 | M540
| | Manwill, James W. | 10 | 2A | 113 | M540
| | Manwill, Orson M. | 53 | 3B | 113 | M540
| | Marble, Charles H. | 68 | 11B | 114 | M614
| | Marble, Jerome L. | 41 | 7A | 114 | M614
| | Marble, Milo | 30 | 12A | 114 | M614
| | Marble, Russell B. | 63 | 11B | 114 | M614
| | Marmon, Sarah J. | 46 | 5A | 115 | M655
| | Marquardsen, Chris | 27 | 3A | 114 | M626
| | Marquardson, Nellie | 78 | 2B | 114 | M626
| | Martensen, John | 86 | 3B | 113 | M635
| | Martensen, Vernel | 1 | 12A | 116 | M635
| | Martenus, Frank A. | 47 | 12A | 118 | M635
| | Martenus, Haren T. | 44 | 12A | 118 | M635
| | Martin, Alfred | 57 | 4B | 120 | M635
| | Martin, Arthur | 13 | 8A | 120 | M635
| | Martin, Edmund | 12 | 11A | 120 | M635
| | Martin, Jarvis F. | 96 | 3B | 120 | M635
| | Martin, Josiah F. | 32 | 1A | 120 | M635
| | Martin, Leo | 3 | 1A | 118 | M635
| | Martin, Lucian | 64 | 4B | 120 | M635
| | Martin, Theodore D. | 96 | 1B | 119 | M635
| | Martines, Frank G. | 80 | 14B | 118 | M635
| | Martinus, Ellen | 29 | 10A | 116 | M635
| | Marx, Roy | 68 | 2B | 114 | M620
| | Mason, Aldon | 77 | 2B | 112 | M250
| | Mason, Charles G. | 87 | 8B | 120 | M250
| | Mason, George D. | 23 | 5A | 112 | M250
| | Mason, Gerald | 52 | 2B | 112 | M250
| | Mason, Levar | 14 | 3A | 112 | M250
| | Mason, Philip | 46 | 2A | 12 | M250
| | Mason, Phillip J. | 2 | 3A | 112 | M250
| | Mason, Ralph P. | 16 | 3A | 112 | M250
| | Mason, Roy | 26 | 5A | 112 | M250
| | Mason, Vivivan | 14 | 3A | 112 | M250
| | Mason, William E. Jr. | 45 | 6A | 112 | M250
| | Mason, William E. | 12 | 5A | 112 | M250
| | Mathias, Zillah | 98 | 10B | 119 | M320
| | Mattison, Carl A. | 65 | 11B | 120 | M325
| | Mattison, France | 35 | 14A | 120 | M325
| | Mattison, Jonas | 69 | 11B | 120 | M325
| | Mattison, Oscar | 8 | 15A | 120 | M325
| | Mattson, Banard E. | 40 | 10A | 120 | M325
| | Mattson, P. Renholt | 37 | 2A | 120 | M325
| | Mattsson, Oscar | 8 | 15A | 120 | M325
| |