| Father Robert L. Mackesy, MM |
| Father William M. Mackesy, MM |
| Father Francis D. MacRae, MM |
| Father James J. Madden, MM |
| Father William T. Madden, MM |
| Father Henry J. Madigan, MM |
| Father Anthony L. Madison, MM |
| Father Charles M. Magsam, MM |
| Father J. Ernest Mailhot, MM |
| Father Vincent P. Mallon, MM |
| Father Vincent T. Mallon, MM |
| Father Edward F. Malone, MM |
| Father Thomas J. Malone, MM |
| Father Thomas J. Maney, MM |
| Father Edward J. Manning, MM |
| Father James T. Manning, MM |
| Father James V. Manning, MM |
| Father John W. Manning, MM |
| Father Edward T. Mannion, MM |
| Brother Anthony C. Mantel, MM |
| Father Thomas J. Mantica, MM |
| Father Reginald M. Markham, MM |
| Father William F. Marley, MM |
| Father Leonard J. Marron, MM |
| Brother Victor E. Marshall, MM |
| Father Stephen J. Maskell, MM |
| Father John J. Massoth, MM |
| Father Joseph W. Matheis, MM |
| Father Justin E. Maurath, MM |
| Father Walter J. Maxcy, MM |
| Brother Marvin J. Mayberger, MM |
| Father Joseph V. Maynard, MM |
| Brother Adrian R. Mazuchowski, MM |
| Father Thomas A. McBride, MM |
| Father John J. McCabe, MM |
| Father Ramon J. McCabe, MM |
| Brother Thomas McCann, MM |
| Father Charles F. McCarthy, MM |
| Father Leo F. McCarthy, MM |
| Father Michael J. McCarthy, MM |
| Father William D. McCarthy, MM |
| Father William R. McCarthy, MM |
| Father James P. McClarnon, MM |
| Father J. Edmund McClear, MM |
| Father James V. McCloskey, MM |
| Father Vincent B. McConaughy, MM |
| Father John F. McConnell, MM |
| Father Joseph P. McCormack, MM |
| Father James A. McCormick, MM |
| Father Gerard T. McCrane, MM |
| Father Philip F. McCue, MM |
| Father James E. McDermott, MM |
| Father Thomas F. McDermott, MM |
| Father Joseph A. McDonald, MM |
| Father William S. McDonald, MM |
| Father Thomas P. McDonnell, MM |
| Father James J. McFadden, MM |
| Father Joseph J. McGahren, MM |
| Brother Brendan McGillicuddy, MM |
| Father John A. McGinn, MM |
| Father Joseph A. P. McGinn, MM |
| Father J. Donald McGinnis, MM |
| Father Edward J. McGovern, MM |
| Father John J. McGovern, MM |
| Father Edward J. McGuinness, MM |
| Father John R. McGuire, MM |
| Bishop Edward A. McGurkin, MM |
| Father Michael J. McKeirnan, MM |
| Father William T. McKenna, MM |
| Brother Augustine McKernan, MM |
| Father John P. McKernan, MM |
| Father Michael J. McKillop, MM |
| Father Daniel F. McLaughlin, MM |
| Father James E. McLaughlin, MM |
| Father John M. McLoughlin, MM |
| Father James P. McMahon, MM |
| Father Richard S. McMonigal, MM |
| Bishop William J. McNaughton, MM |
| Father James F. McNiff, MM |
| Father Charles J. McPadden, MM |
| Father George H. McPeak, MM |
| Father Donald P. McQuade, MM |
| Father Daniel L. McShane, MM |
| Father Joseph P. Meaney, MM |
| Father John J. Meaney, MM |
| Father John P. Meehan, MM |
| Father Manuel J. Mejia, MM |
| Father Leo J. Melancon, MM |
| Brother Roger J. Mellon, MM |
| Father Arthur Merfeld, MM |
| Father Bernard F. Meyer, MM |
| Father Elmer J. Meyer, MM |
| Seminarian John H. Meyers |
| Father John J. Mihelko, MM |
| Father Francis P. Milroy, MM |
| Brother Donald R. Miriani, MM |
| Father William H. Moeschler, MM |
| Brother Aloysius Moliner, MM |
| Father Vincent H. Montague, MM |
| Father Edward F. Moore, MM |
| Father James J. Morgan, MM |
| Father John J. Moriarty, MM |
| Brother Philip Morini, MM |
| Father John E. Morris, MM |
| Father Thomas M. Morris, MM |
| Father James J. Morrissey, MM |
| Father William J. Morrissey, MM |
| Father Robert F. Morse, MM |
| Father William P. Mulcahy, MM |
| Father William F. Mullan, MM |
| Father Francis E. Mullen, MM |
| Brother John T. Mullen, MM |
| Father Peter P. Mullen, MM |
| Father Francis J. Mulligan, MM |
| Father Albert J. Murphy, MM |
| Father Francis G. Murphy, MM |
| Father Henry J. Murphy, MM |
| Father J. Maynard Murphy, MM |
| Father John J. Murphy, MM |
| Father Laurence T. Murphy, MM |
| Father Martin F. Murphy, MM |
| Father William F. Murphy, MM |
| Father William J. Murphy, MM |
| Father Charles A. Murray, MM |
| Father John H. Murray, MM |
| Brother Leo J. Murray, MM |
| Father Eugene M. Murray, MM |
| Father John C. Murrett, MM |
