Louise BLAIS

(b. 14 September 1734 , Berthier-sur-Mer, Canada, New France d. 19 August 1810 , Cap-St-Ignace, Lower Canada )

Am I Your Ancestor?
BLAIS Family Tree – Connecting the Past to the Present!

What started out as our family is now your’s too!

Louise BLAIS was born 14 September 1734 in Berthier-sur-Mer, Canada, New France

Louise BLAIS was the child of Louis BLAIS and Marie-Anne MERCIER and the grandchild of: (paternal) Pierre BLAIS and Françoise BEAUDOIN (maternal) Jean-Pascal MERCIER and Madeleine BOUCHER

Spouse(s)/Partner(s) and Child(ren):

Louise married Joseph-Toussaint GAGNÉ (GASNIER) dit BELLEAVANCE 14 November 1757 in Berthier-sur-Mer, Canada, New France . The couple had (at least) 4 children.
Joseph-Toussaint GAGNÉ (GASNIER) dit BELLEAVANCE was born abt. 1732 in Québec Province, Canada (Quebec). Joseph-Toussaint died 29 June 1803 in Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola). Joseph-Toussaint was the child of Pierre GAGNÉ and Geneviève FOURNIER.

Louise BLAIS died 19 August 1810 in Cap-St-Ignace, Lower Canada .

m. Gagne Joseph-Toussaint

Details of the family tree of Louise appear below.

Québec Généalogie - Over time, Québec has gone through a series of name changes
From its inception in the early 1600s until 1760, it was called Canada, New France.
1760 to 1763, it was simply Canada
1763 to 1791 - Province of Québec
1791 to 1867 - Lower Canada
1867 to present - Québec, Canada.

Thanks to Micheline Gadbois MacDonald for providing this information.

The Definitive Guide for Researching Your French-Canadian Ancestors in 2025

Family and Children of Louise BLAIS

[Hide/Show]

Louise BLAIS married

Joseph-Toussaint GAGNÉ (GASNIER) dit BELLEAVANCE-- Date: 14 November 1757 Place: Berthier-sur-Mer, Canada, New France
Joseph-Toussaint GAGNÉ (GASNIER) dit BELLEAVANCE was the child of Pierre GAGNÉ and Geneviève FOURNIER

Children of Joseph-Toussaint GAGNÉ (GASNIER) dit BELLEAVANCE and Louise BLAIS:

Marie-Louise GAGNÉ (b.24 October 1760, Cap-St-Ignace, Canada d. 15 March 1795, L'Islet, Lower Canada )
m. Nicolas-Joseph DION dit GUYON 2 August 1780 in Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

Joseph GAGNE (b.4 March 1762, Cap-St-Ignace, Canada d. 18 December 1821, L'Islet, Lower Canada )
m. Felicite THIBAULT 21 July 1783 in Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

Louis GAGNE (b.6 March 1767, Cap-St-Ignace, Province of Québec, Canada d. 12 July 1841, Cap-St-Ignace, Canada East )
m. Louise GUYON (DION) 23 November 1790 in Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

Abraham-Louis GAGNE (b.2 April 1774, Cap-St-Ignace, Province of Québec, Canada d. 17 February 1861, Cap-St-Ignace, Canada East )
m. Genevieve JALBERT 31 January 1797 in Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

Share the History, Life Events, and Stories of Louise BLAIS
(Add details like birth, baptism, census records, military service, obituary, personal achievements, and more.)

[Hide/Show]

Discovering the Ancestry of Louise BLAIS: Events, Photos & Historical Records

1734 Birth
14 September 1734
Berthier-sur-Mer, Canada, New France

1753 - The lightning rod is invented (Benjamin Franklin, United States)

1757 Marriage / Partner
Louise BLAIS and Joseph-Toussaint GAGNÉ (GASNIER) dit BELLEAVANCE 14 November 1757, Berthier-sur-Mer, Québec, Canada (Berthier-en-Bas) (Berthier)

She was 23 years old.

1760 Birth of Child
Marie-Louise GAGNÉ was born 24 October 1760, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

Louise was 26 years old.

1762 Birth of Child
Joseph GAGNE was born 4 March 1762, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

Louise was 27 years old.

1763 - France cedes its North American posessions to Britain by the Treaty of Paris, ending the Seven Years War (French and Indian War). Quebec City French-speaking Catholics were now under the rule of Protestant Britain under King George III.

1767 Birth of Child
Louis GAGNE was born 6 March 1767, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

Louise was 32 years old.

1774 Birth of Child
Abraham-Louis GAGNE was born 2 April 1774, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

Louise was 39 years old.

1775 - The Battle of Québec was fought on December 31 between the American Continental Army and British defenders of Québec City. It was the first major defeat for the Americans in the Revolutionary War.

1780 Marriage of Child
Marie-Louise GAGNÉ married 2 August 1780, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola) to Nicolas-Joseph DION dit GUYON

1783 Marriage of Child
Joseph GAGNE married 21 July 1783, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola) to Felicite THIBAULT

1784 - The bifocal lens is invented (Benjamin Franklin, United States)

The oil lamp is invented (Aimé Argand, Switzerland)

1790 Marriage of Child
Louis GAGNE married 23 November 1790, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola) to Louise GUYON (DION)

1791 - The Constitutional Act divides Québec into Upper and Lower Canada

1793 - The cotton gin is invented (Eli Whitney, United States)

1795 Death of Child
Marie-Louise GAGNÉ died 15 March 1795, L'Islet, Québec, Canada (L'Islet-sur-Mer) (Notre-Dame-de-Bon-Secours)

Louise was 60 years old.

1797 Marriage of Child
Abraham-Louis GAGNE married 31 January 1797, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola) to Genevieve JALBERT

1800 - Electric storage battery is invented (Alessandro Volta, Italy)

1803 Death of Spouse/Partner
Joseph-Toussaint GAGNÉ (GASNIER) dit BELLEAVANCE died 29 June 1803, Cap-St-Ignace, Québec, Canada (Saint-Ignace-de-Loyola)

1810 Death
19 August 1810
Cap-St-Ignace, Lower Canada

She died at the age of 75.

Added: 1/28/2018 10:07:45 AM - Updated: 6/27/2025 9:24:13 PM