| SURNAME |
LOCALITY |
RESEARCHER |
FAMILY WEBSITE |
| Mack | Tremont, Frackville | Johnny Mack | |
| Mahoney | Mahanoy Twp. | Patti Waitman-Ingebretsen | |
| Malinchak | Gilberton | Becky Kelly | Tree on Ancestry |
| Marcelonis | Shenandoah | Nancy Davis | |
| Marsh | | Marsha Fenstermacher / Binkley | |
| Mason | Pottsville, St. Clair, Minersville | Colleen Callahan | |
| Maurer | Tremont | Cyndy Steward | |
| McDaniel | | Allyson Tilton | |
| McDermit | Kelayres, Honeybrook, Silverbrook | Kathryn T. DeCampo | |
| McGlynn | Kelayres, Honeybrook, Silverbrook, Klein | Kathryn T. DeCampo | |
| McGrew | Butler Twp. | Marianne Granoff | |
| McKeon | St.Clair, Shenandoah | Mary Ann Lubinsky | |
| McLaughlin/McLoughlin | St.Clair, Shenandoah, Blyth Twp, Middleport, Port Carbon | Mary Ann Lubinsky | |
| McSally/Salley/Sallie | Donaldson, Frailey Twp. | Susan McMullin | |
| Menchinsky | | Cheryl Moser | |
| Merkewicz, Mercavage | Shenandoah | Nancy Davis | |
| Merwine | Ringtown, New Ringgold, Union Twp., Barry Twp. | Barbara Meyer | |
| Miller | Cressona, N. Manheim Twp. | Judy Castle Stubbs | |
| Moliusis/Molishus | | Becky Davis | |
| Mooney | | John Volz | |
| Morris | Saint Clair | Peggy Lyte Tyrrell | |
| Moser | | Cheryl Moser | |
| Mosser | | Ruth Frie Goebel | |
| Muldoon | Cass, South Cass, Shenandoah | Barbara Wardsworth | |
| Munnelly, Munley, Manley | Ashland | Marianne Granoff | |
| Nolen | Mahanoy Twp. | Joanne Loeffler Brentari | |
| O'Connor | Heckscherville | Mary Ann Lubinsky | |
| O'Neal/Neal | Frailey Twp., Donaldson, Tremont | Bunny Starkey | |
| O'Shaughnessy | Asheville, Gordon | Mike Burke | Website |
| Oryniak | | Betsy Arnoldi | |
| Padden | Butler Twp. | Marianne Granoff | |
| Patten | | Fred Scott | |
| Paulin, Panulynec | Big Mine Run | Dennis J. Halusker, Sr. | |
| Peard | Barnesville | Karen McGurk | |
| Petrauskas/Petrosky | | Becky Davis | |
| Petuska | | May Lane | |
| Powlick | Gilberton | Becky Kelly | Tree on Ancestry |
| Price/Pryce | | Vivian Lane | |
| Portz | | Vivian Lane | |
| Quill, Quell | Ashland | Mary Ann Lubinsky | |
| Quinn | Mahanoy City, Mahanoy Twp. | Tom Quinn | Tree on Ancestry |
| Reber | Ringtown, New Ringgold, Union Twp., Barry Twp. | Barbara Meyer | |
| Reedy/Reidy | Frailey Twp., Donaldson | Bunny Starkey | |
| Rehnert | St.Clair, Shenandoah, Pottsville | Mary Ann Lubinsky | |
| Robinson | | Fred Scott | |
| Roth | | Carol Bauby | |
| | | | |