| Birth* | Pierre Mercier was born circa 1740 at Laval, Angers, Anjou, France. |
| Christening | He was christened circa 1740 at Laval, Angers, Anjou, France. |
| He was the son of Michel Mercier and Louise Groupil. |
| Marriage* | Pierre Mercier married Marie-Anne Fontaine, daughter of Etienne Fontaine and Marie-Madeleine Fournier, on 10 October 1763 at St Joseph, Pte de Lévis, Lévis, Québec, Canada. |
| Engagement | Pierre Mercier and Marie-Anne Fontaine were engaged. |
| Marriage Contract | A contract for the marriage of Pierre Mercier and Marie-Anne Fontaine was signed. |
| Death* | Pierre Mercier died at Québec, Canada. |
| Burial* | He was buried at Québec, Canada. |
