"M" Surnames
| Family | Wife's Maiden Name | Date | County | Contributor |
| MAINWARING, Oliver | TORBOCK | Jun 2010 | Charles | Melinda Holley |
| MAJOR, Hamilton | OPDYKE | Apr 2009 | Pam Shelton-Anderson | |
| MANN, Konrad (Conrad) | FLATER | Mar 2004 | Carroll | Janice |
| MARSHALL, Frank #1 | COLLINS | Jun 2010 | Worcester | Joyce Patterson |
| MARSHALL, Frank #2 | GUMBY | Jun 2010 | Worcester | Joyce Patterson |
| MARTIN, Walter | SMITH | Oct 2005 | Baltimore | Carol Howard |
| MATTHEWS, John Charles | HARPER | Feb 2005 | Washington | Lexi Romero |
| MATTINGLY, Thomas | Mar 2004 | St. Mary's | Shelly Johnson | |
| Mc CAULEY, John | EVERETT | Nov 2005 | Robert Leishman | |
| McLEANE, Charles | EICHELBERGER | Jun 2005 | Baltimore/Frederick | Ann Bettis |
| MEAGHER, Patrick | RYAN | Sep 2006 | Baltimore | Peggy Singh |
| MEAGHER, Philip Thomas | POTTER | Sep 2006 | Baltimore | Peggy Singh |
| MENTZER, Samuel H. | HARTMAN | Mar 2009 | Washington | William Mentzer |
| MERRYMAN, John | HAMMOND | Apr 2009 | Baltimore | Cay Merryman |
| MERTZ, Jacob Daniel, Jr. * | LAMBERT | Jun 2008 | Washington | Beth Rasmussen |
| MERTZ, Jacob Daniel, Sr. * | DURNBAUGH | Jun 2008 | Washington | Beth Rasmussen |
| MERTZ, Johan Peter * | HORINE | Jun 2008 | Frederick | Beth Rasmussen |
| MERTZ, Johann Theobald Dewalt * | MNU | Jun 2008 | Frederick | Beth Rasmussen |
| METCALF, Clarence William | TRACEY | Mar 2009 | Baltimore | rayswork |
| MIDDLETON, Raphael Alexander | BOONE | Aug 2003 | Charles | Shirley Middleton Moller |
| MIDDLETON, Vivian Marion | LANHAM | Aug 2003 | Shirley Middleton Moller | |
| MILES, Richard T. | SEWELL | Nov 2005 | Howard/Prince Georges | Clarence W. WOODS, Sr. |
| MILLER, Ellis Clyde | ROLLINS | Aug 2006 | Baltimore | Gayle Triller |
| MILLER, John | GLOCK | Nov 2003 | Baltimore | Everett Voelker |
| MILLER, John Henry | STRICKLEN | Aug 2006 | Baltimore | Gayle Triller |
| MILLER, William C. | PRICE | Feb 2005 | Baltimore | Robert Miller |
| MILLS, Thomas | Jun 2004 | Washington | Tracy Mills | |
| MILLS, William Wrightson | DEAN | Mar 2006 | Dorchester | Lisa Mills |
| MODLIN, Chalmer Hyatt | MYERLY | Mar 2009 | Carroll | Robin Bills |
| MONGAN, Robert Canady | WOLFORD | Apr 2009 | Washington | Lynette Edsall |
| MOODY, Thomas Wesley | ROBINSON | Mar 2009 | Larry Moody | |
| MOORE, John D * | ALLEN | Mar 2004 | Prince Georges | Shirley Buckler |
| MOORE, William Thomas * | RAMSDELL | Mar 2004 | Prince Georges | Shirley Buckler |
| MORAN, Patrick | HUGHES | Aug 2006 | Baltimore | Peggy Singh |
| MORGAN, John Ward | GALE | Oct 2008 | Cecil | Elizabeth |
| MORGAN, Thomas Gale | FOLS | Oct 2008 | Cecil | Elizabeth |
| MORGAN, Thomas Gale | GILMORE | Oct 2008 | Cecil | Elizabeth |
| MORROW, David | Oct 2005 | Baltimore | Bill Morrow | |
| MUELLER, Michael | SCHAFFNER | Nov 2003 | Baltimore | Everett Voelker |
* PDF File - Requires Adobe Reader
