| Name | Relationship with Holly Ferguson | Civil | Canon |
| Ferguson, Richard P. | 2nd cousin 5 times removed | XI | 8 |
| Ferguson, Rod Alexander | Brother | II | 1 |
| Half 30th cousin once removed | LXIII | 32 |
| Ferguson, Ruby Lillian | 4th cousin twice removed | XII | 7 |
| Ferguson, Sally Kay | 1st cousin | IV | 2 |
| Half 30th cousin once removed | LXIII | 32 |
| Ferguson, Samantha Marie | 1st cousin twice removed | VI | 4 |
| Half 31st cousin once removed | LXV | 33 |
| Ferguson, Sarah | 2nd cousin 5 times removed | XI | 8 |
| Ferguson, Sarah | 1st cousin 6 times removed | X | 8 |
| Ferguson, Sarah | 1st cousin 4 times removed | VIII | 6 |
| Ferguson, Sarah | 5th cousin twice removed | XIV | 8 |
| Ferguson, Sarah "Sallie" | 2nd cousin 5 times removed | XI | 8 |
| Ferguson, Sarah Elizabeth | 1st cousin twice removed | VI | 4 |
| Half 31st cousin once removed | LXV | 33 |
| Ferguson, Sarah R. | 2nd cousin 4 times removed | X | 7 |
| Ferguson, Sarah Rebecca | 3rd cousin 3 times removed | XI | 7 |
| Ferguson, Sarah Thayl | Grandaunt | IV | 3 |
| Ferguson, Scott Joseph | 1st cousin | IV | 2 |
| Half 30th cousin once removed | LXIII | 32 |
| Ferguson, Scott Joseph, Jr. | 1st cousin once removed | V | 3 |
| Half 31st cousin | LXIV | 32 |
| Ferguson, Seluda | 2nd cousin 5 times removed | XI | 8 |
| Ferguson, Stephen | Husband of the 3rd cousin 4 times removed | | |
| Ferguson, Steven | 2nd cousin | VI | 3 |
| Ferguson, Susanna | 4th great-grandaunt | VIII | 7 |
| Ferguson, Susannah A.S. | 3rd cousin 4 times removed | XII | 8 |
| Ferguson, Talon | Niece | III | 2 |
| Half 31st cousin | LXIV | 32 |
| Ferguson, Thomas | 4th great-granduncle | VIII | 7 |
| Ferguson, Thomas | 5th great-granduncle | IX | 8 |
| Ferguson, Thomas | 2nd cousin 5 times removed | XI | 8 |
| Ferguson, Thomas Anthony | 1st cousin once removed | V | 3 |
| Ferguson, Travis Bob | 1st cousin once removed | V | 3 |
| Half 31st cousin | LXIV | 32 |
| Ferguson, Tyler Scott | 1st cousin twice removed | VI | 4 |
| Half 31st cousin once removed | LXV | 33 |
| Ferguson, unborn | 1st cousin 6 times removed | X | 8 |
| Ferguson, Unknown | 1st cousin | IV | 2 |
| Half 30th cousin once removed | LXIII | 32 |
| Ferguson, Warrick | 1st cousin 5 times removed | IX | 7 |
| Ferguson, Warrick | 1st cousin 5 times removed | IX | 7 |
| Ferguson, Wayne | 2nd cousin | VI | 3 |
| Ferguson, Wiliam | 2nd cousin 5 times removed | XI | 8 |
| Ferguson, William | 4th great-granduncle | VIII | 7 |
| Ferguson, William | 5th great-granduncle | IX | 8 |
| Ferguson, William | 1st cousin 6 times removed | X | 8 |
| Ferguson, William | 2nd great-granduncle | VI | 5 |
| Ferguson, William A. | 2nd cousin 5 times removed | XI | 8 |
| Ferguson, William D. | 3rd cousin 4 times removed | XII | 8 |