| Birth* | Pierre Gagnon was born on 14 February 1612 at Ste Madeleine, La Ventrouze, Tourouvre, Perche, France. |
| Christening | He was christened on 14 February 1612 at Ste Madeleine, La Ventrouze, Tourouvre, Perche, France. |
| He was the son of Pierre Gagnon and Renée Roger. |
| Marriage* | Pierre Gagnon married Vincente Desvarieux, daughter of Jean Desvarieux and Marie Chevalier, on 14 September 1642 at Nôtre-Dame, Québec, Québec, Canada. |
| Marriage Contract | A contract for the marriage of Pierre Gagnon and Vincente Desvarieux was signed. |
| Engagement | Pierre Gagnon and Vincente Desvarieux were engaged. |
| Death* | Pierre Gagnon died on 17 April 1699 at La Visitation de Nôtre-Dame, Château-Richer, Montmorency, Québec, Canada, at age 87. |
| Burial* | He was buried on 18 April 1699 at La Visitation de Nôtre-Dame, Château-Richer, Montmorency, Québec, Canada. |
