| Name | Relationship with Guy Bienvenue | Civil | Canon |
|---|
| Fontaine, Joseph Ovila Gérard Albert | 5th cousin twice removed | XIV | 8 |
| | 5th cousin twice removed of the wife | | |
| Fontaine, Joseph Paul-Aimé Louis | 6th cousin once removed | XV | 8 |
| | 6th cousin once removed of the wife | | |
| Fontaine, Joseph Serge Raynald | Half 7th cousin once removed | XVII | 9 |
| | Half 7th cousin once removed of the wife | | |
| Fontaine, Joseph-Alphée Théophile | 5th cousin twice removed | XIV | 8 |
| | 5th cousin twice removed of the wife | | |
| Fontaine, Joseph-Amable | Half 3rd cousin 5 times removed | XIII | 9 |
| | Half 3rd cousin 5 times removed of the wife | | |
| Fontaine, Josephe | Half 2nd cousin 6 times removed | XII | 9 |
| | Half 2nd cousin 6 times removed of the wife | | |
| Fontaine, Josephe | Half 4th cousin 4 times removed | XIV | 9 |
| | Half 4th cousin 4 times removed of the wife | | |
| Fontaine, Josephe | 1st cousin 5 times removed | IX | 7 |
| | 1st cousin 5 times removed of the wife | | |
| Fontaine, Josephe | 1st cousin 5 times removed | IX | 7 |
| | 1st cousin 5 times removed of the wife | | |
| Fontaine, Joseph-Hector | 3rd cousin 4 times removed | XII | 8 |
| | 3rd cousin 4 times removed of the wife | | |
| Fontaine, Joséphine | 4th cousin 3 times removed | XIII | 8 |
| | 4th cousin 3 times removed of the wife | | |
| Fontaine, Joséphine | Half 5th cousin 3 times removed | XV | 9 |
| | Half 5th cousin 3 times removed of the wife | | |
| Fontaine, Joseph-Léon Ernest | 5th cousin twice removed | XIV | 8 |
| | 5th cousin twice removed of the wife | | |
| Fontaine, Joseph-Marie | 4th cousin 3 times removed | XIII | 8 |
| | 4th cousin 3 times removed of the wife | | |
| Fontaine, Joseph-Osias (Odias?) | 4th cousin 3 times removed | XIII | 8 |
| | 4th cousin 3 times removed of the wife | | |
| Fontaine, Josephte | 3rd great-grandaunt | VII | 6 |
| | 3rd great-grandaunt of the wife | | |
| Fontaine, Josephte | Half 2nd cousin 6 times removed | XII | 9 |
| | Half 2nd cousin 6 times removed of the wife | | |
| Fontaine, Josephte | Half 3rd cousin 5 times removed | XIII | 9 |
| | Half 3rd cousin 5 times removed of the wife | | |
| Fontaine, Jos-N. | 3rd cousin once removed | IX | 5 |
| | 3rd cousin once removed of the wife | | |
| Fontaine, J-Toussaint Emile | 5th cousin twice removed | XIV | 8 |
| | 7th cousin once removed | XVII | 9 |
| | 5th cousin twice removed of the wife | | |
| | 7th cousin once removed of the wife | | |
| Fontaine, Judith | 2nd cousin 5 times removed | XI | 8 |
| | 2nd cousin 5 times removed of the wife | | |
| Fontaine, Judith | Half 4th cousin 4 times removed | XIV | 9 |
| | Half 4th cousin 4 times removed of the wife | | |
| Fontaine, Jules | 5th cousin twice removed | XIV | 8 |
| | 5th cousin twice removed of the wife | | |
| Fontaine, Julie | 1st cousin 4 times removed | VIII | 6 |
| | 1st cousin 4 times removed of the wife | | |