| Name | Graveyard / Cemetery / Burial Ground |
| |
| Mallon Bartle | Raffony RC Graveyard County Cavan |
| Mallon Catherine | Raffony RC Graveyard County Cavan |
| Mallon Kate F | Raffony RC Graveyard County Cavan |
| Mallon Katie | Urney RC Church County Cavan |
| Mallon Mary | Raffony RC Graveyard County Cavan |
| Mallon Patrick | Raffony RC Graveyard County Cavan |
| Malone J J | Kill RC Church County Cavan |
| Malone Susan | Kill RC Church County Cavan |
| Manning Eliza J | Ballyhaise Church of Ireland County Cavan |
| Manning John | Ballyhaise Church of Ireland County Cavan |
| Manning Johnny | Ballyhaise Church of Ireland County Cavan |
| Manning Mary | Ballyhaise Church of Ireland County Cavan |
| Manning Mary J | Ballyhaise Church of Ireland County Cavan |
| Manning Robert | Ballyhaise Church of Ireland County Cavan |
| Manning Robert C | Ballyhaise Church of Ireland County Cavan |
| Manning Thomas | Ballyhaise Church of Ireland County Cavan |
| Manning William | Ballyhaise Church of Ireland County Cavan |
| Martin Adelaide J | Kingscourt Church of Ireland County Cavan |
| Martin Catherine | Magherintemple RC Graveyard County Cavan |
| Martin Charles | Derver RC Graveyard County Cavan |
| Martin Eliza | Killoughter Old RC Graveyard County Cavan |
| Martin Elizabeth | Killeshandra Church of Ireland County Cavan |
| Martin George | Kingscourt Church of Ireland County Cavan |
| Martin Henery | Magherintemple RC Graveyard County Cavan |
| Martin Henry | Kingscourt Church of Ireland County Cavan |
| Martin Henry | Killeshandra Church of Ireland County Cavan |
| Martin James | Kingscourt Church of Ireland County Cavan |
| Martin James | Kingscourt Church of Ireland County Cavan |
| Martin James | Magherintemple RC Graveyard County Cavan |
| Martin John | Killoughter Old RC Graveyard County Cavan |
| Martin John R | Kingscourt Church of Ireland County Cavan |
| Martin Lena M | Kingscourt Church of Ireland County Cavan |
| Martin Margaret | Killeshandra RC Church County Cavan |
| Martin Margaret F | Kingscourt Church of Ireland County Cavan |
| Martin Martha J | Kingscourt Church of Ireland County Cavan |
| Martin Mary | Magherintemple RC Graveyard County Cavan |
| Martin Mary C | Belturbet Church of Ireland County Cavan |
| Martin Mes | Killoughter Old RC Graveyard County Cavan |
| Martin Myles | Magherintemple RC Graveyard County Cavan |
| Martin Peter | Magherintemple RC Graveyard County Cavan |
| Martin Philip | Magherintemple RC Graveyard County Cavan |
| Martin Philip | Magherintemple RC Graveyard County Cavan |
| Martin Roas | Magherintemple RC Graveyard County Cavan |
| Martin Samuel | Kingscourt Church of Ireland County Cavan |
| Martin Sophia | Belturbet Church of Ireland County Cavan |
| Martin Walter M | Belturbet Church of Ireland County Cavan |
| Martin William | Belturbet Church of Ireland County Cavan |
| Martin William | Killeshandra RC Church County Cavan |
| Mason William | Killinagh RC Graveyard County Cavan |
| Masterson Anna M | Killeshandra RC Church County Cavan |
| Masterson Flora | Killeshandra RC Church County Cavan |
| Masterson Laurence | Killeshandra RC Church County Cavan |
| Masterson Luke | Killeshandra RC Church County Cavan |
| Masterson Luke | Killeshandra RC Church County Cavan |
| Masterson Maria | Killeshandra RC Church County Cavan |
| Mathews Alice | Belturbet Church of Ireland County Cavan |
| Mathews Catherine | Arvagh Church of Ireland County Cavan |
| Mathews Elizabeth | Arvagh Church of Ireland County Cavan |
