| Birth* | Jean-Baptiste Gonthier was born on 28 November 1680 at St Etienne, Beaumont, Bellechasse, Québec, Canada. |
| He was the son of Bernard Gonthier and Marguerite Paquet. |
| Christening | Jean-Baptiste Gonthier was christened on 26 December 1680 at St Joseph, Pte de Lévis, Lévis, Québec, Canada. |
| Marriage* | He married Geneviève Roy, daughter of Louis Roy and Marie Ledran, on 18 June 1708 at St Etienne, Beaumont, Bellechasse, Québec, Canada. |
| Marriage License | Jean-Baptiste Gonthier and Geneviève Roy obtained a marriage license. |
| Engagement | Jean-Baptiste Gonthier and Geneviève Roy were engaged. |
| Death* | Jean-Baptiste Gonthier died on 8 December 1749 at St Charles, Bellechasse, Québec, Canada, at age 69. |
| Burial* | He was buried on 8 December 1749 at St Charles, Bellechasse, Québec, Canada. |
