| Birth* | Marie-Gertrude Lemieux was born on 29 December 1728 at Ile-aux-Grues, Montmagny, Québec, Canada. |
| She was the daughter of Joseph-Alexis Lemieux and Geneviève Fortin. |
| Christening | Marie-Gertrude Lemieux was christened on 27 March 1729 at Cap-St-Ignace, Montmagny, Québec, Canada. |
| Divorce* | She and Louis-Joseph Delisle were divorced. |
| Marriage* | Marie-Gertrude Lemieux married Louis-Joseph Delisle, son of Louis-Joseph Delisle and Marie-Madeleine Toupin dit Dussault, on 29 September 1749 at Cap-St-Ignace, Montmagny, Québec, Canada. |
| Engagement | Marie-Gertrude Lemieux and Louis-Joseph Delisle were engaged. |
| Death* | Marie-Gertrude Lemieux died after 23 September 1764 at Cap-St-Ignace, Montmagny, Québec, Canada. |
| Burial* | She was buried. |
| Burial | She was buried after 23 September 1764 at Cap-St-Ignace, Montmagny, Québec, Canada. |
| Note* | She Died after death of last child (anonymous), 23 Sep 1764. |
| Married Name | Her married name was Delisle. |
