| Name | Birth date | Relationship with Sean Mulcahey |
| | | Husband of the 8th cousin twice removed |
| | | Husband of the 9th cousin once removed |
| Lenahan, John | | 1st cousin once removed |
| | | 8th cousin once removed |
| | | 9th cousin |
| | | 8th cousin twice removed |
| | | 9th cousin once removed |
| Lenahan, Joseph | Abt. 1977 | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Lenahan, Laura Jean | Abt. 1975 | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Lenahan, Linda | | 1st cousin once removed |
| | | 8th cousin once removed |
| | | 9th cousin |
| | | 8th cousin twice removed |
| | | 9th cousin once removed |
| Lenahan, Michael | | 1st cousin once removed |
| | | 8th cousin once removed |
| | | 9th cousin |
| | | 8th cousin twice removed |
| | | 9th cousin once removed |
| Lenahan, Michael | | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Lenahan, Nancy | | 1st cousin once removed |
| | | 8th cousin once removed |
| | | 9th cousin |
| | | 8th cousin twice removed |
| | | 9th cousin once removed |
| Lenahan, Ray | Abt. 1926 | Husband of the grandaunt |
| | | Husband of the 7th cousin twice removed |
| | | Husband of the 8th cousin once removed |
| | | Husband of the 7th cousin 3 times removed |
| | | Husband of the 8th cousin twice removed |
| Lenahan, Richard | May 23, 1951 | 1st cousin once removed |
| | | 8th cousin once removed |
| | | 9th cousin |
| | | 8th cousin twice removed |
| | | 9th cousin once removed |
| Lenahan, Scott | | 2nd cousin |
| | | 9th cousin |
| | | 9th cousin once removed |
| | | 10th cousin |
| Lenahan, Son1 | Abt. 1987 | 2nd cousin |
| | | 9th cousin |