| Birth* | Magdeleine Desrosiers was born on 24 May 1725 at La Nativité de Nôtre-Dame, Bécancourt, Nicolet, Québec, Canada. |
| She was the daughter of Francois Desrosiers and Marie-Marguerite Deshayes dit St Cyr. |
| Christening | Magdeleine Desrosiers was christened on 25 May 1725 at La Nativité de Nôtre-Dame, Bécancourt, Nicolet, Québec, Canada. |
| Marriage* | She married Ange Lefebvre dit Descoteaux, son of Claude Lefebvre dit Descoteaux and Marie-Catherine Desrochers, on 17 January 1752 at Trois-Rivières, St Maurice, Québec, Canada. |
| Marriage Contract | A contract for the marriage of Magdeleine Desrosiers and Ange Lefebvre dit Descoteaux was signed on 17 January 1752 at Trois-Rivières, St Maurice, Québec, Canada. |
| Death* | Magdeleine Desrosiers died after 17 January 1752 at Québec, Canada. |
| Burial* | She was buried after 17 January 1752 at Québec, Canada. |
| Married Name | Her married name was Lefebvre. |
