Louis-Antoine-Sylvestre GAGNON

(b. 30 December 1746 , Les Éboulements, Canada, New France d. 24 March 1781 , Les Éboulements, Province of Québec, Canada )

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

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

Louis-Antoine-Sylvestre GAGNON was born 30 December 1746 in Les Éboulements, Canada, New France

Louis-Antoine-Sylvestre GAGNON was the child of Pierre GAGNON and Scholastique GIRARD and the grandchild of: (paternal) Joseph-Marie GAGNON and Marie-Madeleine TREMBLAY (maternal) Pierre-Louis GIRARD and Marguerite TARDIF

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

Louis-Antoine-Sylvestre married Julie GUAY (CASTONGUAY) 12 August 1771 in Les Éboulements, Province of Québec, Canada . The couple had (at least) 2 children.
Julie GUAY (CASTONGUAY) was born 2 February 1747 in Baie-Saint-Paul, Québec, Canada (Saint-Pierre-et-Saint-Paul-de-Baie-Saint-Paul). Julie died 23 February 1825 in Iberville, Québec, Canada (Saint-Athanase-de-Bleury). Julie was the child of Noel GUAY (CASTONGUAY) and Marie-Josephte TREMBLAY.

Louis-Antoine-Sylvestre GAGNON died 24 March 1781 in Les Éboulements, Province of Québec, Canada .
Details of the family tree of Louis-Antoine-Sylvestre appear below.

Gagnon Family Legacy - Ceramic Mug

Did you know that most people with the Gagnon name came from three sons of Pierre Gagnon (Gaignon) and Renee Roger of Tourouvre, France, who came to New France (Quebec) around 1637? Mathurin, Jean and Pierre Gagnon, along with their wives did much to populate North America with the proud Gagnon surname!

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 Louis-Antoine-Sylvestre GAGNON

[Hide/Show]

Louis-Antoine-Sylvestre GAGNON married

Julie GUAY (CASTONGUAY)-- Date: 12 August 1771 Place: Les Éboulements, Province of Québec, Canada
Julie GUAY (CASTONGUAY) was the child of Noel GUAY (CASTONGUAY) and Marie-Josephte TREMBLAY

Children of Louis-Antoine-Sylvestre GAGNON and Julie GUAY (CASTONGUAY):

Elisabeth GAGNON (b.abt. 1772, , Québec Province, Canada d. , )
m. Fabien GAGNÉ 24 November 1795 in Les Éboulements, Québec, Canada (Notre-Dame-de-l'Assomption-des-Eboulements)

Gervais GAGNON (b.8 May 1778, Les Éboulements, Province of Québec, Canada d. 31 January 1866, , Québec Province, Canada )
m. Geneviève TREMBLAY 8 August 1797 in Les Éboulements, Québec, Canada (Notre-Dame-de-l'Assomption-des-Eboulements)

Share the History, Life Events, and Stories of Louis-Antoine-Sylvestre GAGNON
(Add details like birth, baptism, census records, military service, obituary, personal achievements, and more.)

[Hide/Show]

Discovering the Ancestry of Louis-Antoine-Sylvestre GAGNON: Events, Photos & Historical Records

1746 Birth
30 December 1746
Les Éboulements, Canada, New France

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

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.

1771 Marriage / Partner
Louis-Antoine-Sylvestre GAGNON and Julie GUAY (CASTONGUAY) 12 August 1771, Les Éboulements, Québec, Canada (Notre-Dame-de-l'Assomption-des-Eboulements)

He was 24 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.

1778 Birth of Child
Gervais GAGNON was born 8 May 1778, Les Éboulements, Québec, Canada (Notre-Dame-de-l'Assomption-des-Eboulements)

Louis-Antoine-Sylvestre was 31 years old.