| Name | Relationship with Margaret Plauche | Civil | Canon |
|---|
| Half 4th cousin once removed | XI | 6 |
| 5th cousin | XII | 6 |
| 5th cousin once removed | XIII | 7 |
| Half 5th cousin once removed | XIII | 7 |
| 6th cousin | XIV | 7 |
| Half 6th cousin | XIV | 7 |
| Half 5th cousin twice removed | XIV | 8 |
| 6th cousin once removed | XV | 8 |
| Half 6th cousin once removed | XV | 8 |
| 6th cousin twice removed | XVI | 9 |
| 7th cousin | XVI | 8 |
| Half 7th cousin | XVI | 8 |
| Half 7th cousin once removed | XVII | 9 |
| Half 7th cousin twice removed | XVIII | 10 |
| Half 8th cousin | XVIII | 9 |
| Ducote, Hypolite | 2nd great-grandfather | IV | 4 |
| Half 1st cousin 3 times removed | VII | 5 |
| Half 2nd cousin 4 times removed | X | 7 |
| 3rd cousin 3 times removed | XI | 7 |
| Half 3rd cousin 3 times removed | XI | 7 |
| 3rd cousin 4 times removed | XII | 8 |
| Half 3rd cousin 4 times removed | XII | 8 |
| 3rd cousin 5 times removed | XIII | 9 |
| Half 4th cousin 3 times removed | XIII | 8 |
| Half 4th cousin 4 times removed | XIV | 9 |
| Husband of the 2nd cousin 3 times removed | | |
| Husband of the 2nd cousin 4 times removed | | |
| Husband of the half 3rd cousin twice removed | | |
| Husband of the 3rd cousin 3 times removed | | |
| Husband of the half 3rd cousin 3 times removed | | |
| Husband of the half 2nd cousin 5 times removed | | |
| Husband of the 3rd cousin 4 times removed | | |
| Husband of the 4th cousin twice removed | | |
| Husband of the half 4th cousin twice removed | | |
| Husband of the half 3rd cousin 4 times removed | | |
| Husband of the 4th cousin 3 times removed | | |
| Husband of the half 4th cousin 3 times removed | | |
| Husband of the half 4th cousin 4 times removed | | |
| Husband of the half 5th cousin twice removed | | |
| Husband of the half 4th cousin 5 times removed | | |
| Husband of the half 5th cousin 3 times removed | | |
| Ducote, Joseph | 4th great-grandfather | VI | 6 |
| Half 1st cousin 5 times removed | IX | 7 |
| Half 1st cousin 6 times removed | X | 8 |
| Half 2nd cousin 5 times removed | XI | 8 |
| Half 2nd cousin 6 times removed | XII | 9 |
| Husband of the half 4th great-grandaunt | | |
| Ducote, Joseph Albert | Great-grandfather | III | 3 |
| Half 2nd cousin twice removed | VIII | 5 |
| 3rd cousin twice removed | X | 6 |
