| Name | Birth date | Relationship with Sean Mulcahey |
| | | Husband of the 9th cousin once removed |
| Kane, Raymond | July 15, 1976 | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Karen | | Wife of the 1st cousin once removed |
| | | Wife of the 8th cousin once removed |
| | | Wife of the 9th cousin |
| | | Wife of the 8th cousin twice removed |
| | | Wife of the 9th cousin once removed |
| Kathy | | Wife of the half 2nd cousin once removed |
| Kathy | October 24, 1946 | Wife of the granduncle |
| | | Wife of the 7th cousin twice removed |
| | | Wife of the 8th cousin once removed |
| | | Wife of the 7th cousin 3 times removed |
| | | Wife of the 8th cousin twice removed |
| Kayet, Jean | | 9th great-grandfather |
| Kayet, Marie-Catherine-Theresa | | 8th great-grandmother |
| Kowalsky, Jean | | Wife of the 1st cousin twice removed |
| Labriche, Marie-Anne | Abt. 1720 | 7th great-grandmother |
| Lamoreaux | | Husband of the 1st cousin once removed |
| | | Husband of the 8th cousin once removed |
| | | Husband of the 9th cousin |
| | | Husband of the 8th cousin twice removed |
| | | Husband of the 9th cousin once removed |
| Lamoreaux, Sylvia | | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Landreau, Nath. | Abt. 1705 | 9th great-grandmother |
| Langlois, Agathe | Abt. 1775 | 5th great-grandmother |
| Langlois, Jean | Abt. 1745 | 6th great-grandfather |
| Langlois, Jean-Baptiste | Abt. 1715 | 7th great-grandfather |
| Langlois, Jeane | | 9th great-grandmother |
| Langlois, Nic. | Abt. 1655 | 9th great-grandfather |
| Langlois, Nic. | Abt. 1685 | 8th great-grandfather |
| Laparte, Jacques-Geo. | | 9th great-grandfather |
| Laparte, Suz. | Bef. 1768 | 8th great-grandmother |
| | | Wife of the 8th great-granduncle |
| Lappen, Harry | | 3rd great-granduncle |
| Lappen, James Henry | March 11, 1874 | 2nd great-granduncle |
| Lappen, Joseph Arthur | September 02, 1884 | 2nd great-granduncle |
| Lappen, Mark Walter | October 22, 1882 | 2nd great-granduncle |
| Lappen, Mary Ellen | August 20, 1872 | 2nd great-grandmother |
| Lappen, Patrick | Abt. 1820 | 4th great-grandfather |
| Lappen, Patrick | 1846 | 3rd great-grandfather |
| Lappen, Sibling1 | | 3rd great-granduncle |
| Lappen, Sibling2 | | 3rd great-grandaunt |
| Lappen, Sibling3 | | 3rd great-granduncle |
| Lappen, Sibling4 | | 3rd great-grandaunt |