| Name | Relationship with Margaret Plauche | Civil | Canon |
| 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, Pierre Coueur | 6th great-grandfather | VIII | 8 |
| Ducote, Pierre II | 5th great-grandfather | VII | 7 |
| Husband of the half 4th great-grandaunt | | |
| Husband of the half 5th great-grandaunt | | |
| Husband of the half 1st cousin 6 times removed | | |
| Husband of the half 1st cousin 7 times removed | | |
| Dumets, Marie | 7th great-grandmother | IX | 9 |
| 8th great-grandmother | X | 10 |
| Dunoyers, Charlotte | 7th great-grandmother | IX | 9 |
| Duplechien, Jean J | 6th great-grandfather | VIII | 8 |
| Duplechien, Marie | 4th great-grandmother | VI | 6 |
| 1st cousin 6 times removed | X | 8 |
| 1st cousin 7 times removed | XI | 9 |
| Wife of the half 3rd great-granduncle | | |
| Duplechien, Phillipe | 5th great-grandfather | VII | 7 |
| Husband of the 5th great-grandaunt | | |
| Husband of the 6th great-grandaunt | | |
| Duval, Elizabeth | 8th great-grandmother | X | 10 |
| Edelmayer, Anne Marie | Wife of the 6th great-grandfather | | |
| Wife of the 7th great-grandfather | | |
| Wife of the 8th great-grandfather | | |
| Edelmeier, Anne Marie | Wife of the 6th great-grandfather | | |
| Wife of the 7th great-grandfather | | |
| Wife of the 8th great-grandfather | | |
| Edelmier, Anne Marie | 6th great-grandmother | VIII | 8 |
| 7th great-grandmother | IX | 9 |
| 8th great-grandmother | X | 10 |
| Ennette | 5th great-grandmother | VII | 7 |
| Ferret, Jacques Firmin | 6th great-grandfather | VIII | 8 |
| Firmin, Agnes | 4th great-grandmother | VI | 6 |
| Firmin, Joseph Ferret | 5th great-grandfather | VII | 7 |
| Foltz, Marguerite | 6th great-grandmother | VIII | 8 |
| Fontenot, Marie Anne | 7th great-grandmother | IX | 9 |
| Frederic, Jean | 6th great-grandfather | VIII | 8 |
| Frederic, Marie Catherine | 5th great-grandmother | VII | 7 |
| Frederic-Leonard, Jean Baptiste | 6th great-grandfather | VIII | 8 |