Pierre DESHAYES (DESHAIES) ST-CYR

(b. 12 November 1745 , Bécancour, Nicolet, Canada, New France d. 10 April 1812 , Baie-du-Fèbvre, Lower Canada )

Am I Your Ancestor?
DESHAYES (DESHAIES) ST-CYR Family Tree – Connecting the Past to the Present!

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

Pierre DESHAYES (DESHAIES) ST-CYR was born 12 November 1745 in Bécancour, Nicolet, Canada, New France

Pierre DESHAYES (DESHAIES) ST-CYR was the child of Pierre DESHAYES (DESHAIES) dit ST-CYR and Marguerite-Agathe LEFEBVRE dite BELISLE and the grandchild of: (paternal) Pierre DESHAYES (DESHAIES) dit ST-CYR and Marguerite GUILLET (maternal) Ignace LEFEBVRE dit BELISLE and Marie-Suzanne TROTTIER

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

Pierre married Geneviève BILLY dite COURVILLE 12 November 1700 in Bécancour, Nicolet, Canada, New France . The couple had (at least) 2 children.
Geneviève BILLY dite COURVILLE was born 25 December 1746 in Champlain, Québec, Canada (Notre-Dame-de-la-Visitation). Geneviève died 31 January 1835 in Baie-du-Fèbvre, Québec, Canada (Saint-Antoine-de-la-Baie-du-Febvre). Geneviève was the child of Jean-Francois BILLY dit COURVILLE and Madeleine PERROT (PERRAULT) dite TURBAL.

Pierre married (2) Élisabeth Isabelle THIBAULT 18 November 1767 in Bécancour, Nicolet, Province of Québec, Canada . Élisabeth Isabelle THIBAULT was born abt. 1739 in Canada. Élisabeth Isabelle was the child of Louis THIBAULT and Anne Ursule Jeanne PICOT.

Pierre DESHAYES (DESHAIES) ST-CYR died 10 April 1812 in Baie-du-Fèbvre, Lower Canada .
Details of the family tree of Pierre 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 Pierre DESHAYES (DESHAIES) ST-CYR

[Hide/Show]

Pierre DESHAYES (DESHAIES) ST-CYR married

Geneviève BILLY dite COURVILLE-- Date: 12 November 1700 Place: Bécancour, Nicolet, Canada, New France
Geneviève BILLY dite COURVILLE was the child of Jean-Francois BILLY dit COURVILLE and Madeleine PERROT (PERRAULT) dite TURBAL

Children of Pierre DESHAYES (DESHAIES) ST-CYR and Geneviève BILLY dite COURVILLE:

Marie-Josephe DESHAIES (b.5 October 1774, Bécancour, Nicolet, Province of Québec, Canada d. 10 June 1865, Bécancour, Nicolet, Canada East )
m. Modeste LEVASSEUR 20 July 1795 in Bécancour, Nicolet, Québec, Canada (Nativité-de-Notre-Dame-de-Becancour) (Saint-Edouard-de-Gentilly)

Marie-Anne DESHAIES dite ST-CYR (b.12 March 1778, Bécancour, Nicolet, Province of Québec, Canada d. 11 December 1855, Pierreville, Yamaska, Canada East )
m. Joseph-Louis CAYA 28 October 1800 in Baie-du-Fèbvre, Québec, Canada (Saint-Antoine-de-la-Baie-du-Febvre)

Pierre DESHAYES (DESHAIES) ST-CYR married

Élisabeth Isabelle THIBAULT-- Date: 18 November 1767 Place: Bécancour, Nicolet, Province of Québec, Canada
Élisabeth Isabelle THIBAULT was the child of Louis THIBAULT and Anne Ursule Jeanne PICOT

Children of Pierre DESHAYES (DESHAIES) ST-CYR and Élisabeth Isabelle THIBAULT:

Share the History, Life Events, and Stories of Pierre DESHAYES (DESHAIES) ST-CYR
(Add details like birth, baptism, census records, military service, obituary, personal achievements, and more.)

[Hide/Show]

Discovering the Ancestry of Pierre DESHAYES (DESHAIES) ST-CYR: Events, Photos & Historical Records

1700 Marriage / Partner
Pierre DESHAYES (DESHAIES) ST-CYR and Geneviève BILLY dite COURVILLE 12 November 1700, Bécancour, Nicolet, Québec, Canada (Nativité-de-Notre-Dame-de-Becancour) (Saint-Edouard-de-Gentilly)

He was -46 years old.

1745 Birth
12 November 1745
Bécancour, Nicolet, 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.

1767 Marriage / Partner
Pierre DESHAYES (DESHAIES) ST-CYR and Élisabeth Isabelle THIBAULT 18 November 1767, Bécancour, Nicolet, Québec, Canada (Nativité-de-Notre-Dame-de-Becancour) (Saint-Edouard-de-Gentilly)

He was 22 years old.

1774 Birth of Child
Marie-Josephe DESHAIES was born 5 October 1774, Bécancour, Nicolet, Québec, Canada (Nativité-de-Notre-Dame-de-Becancour) (Saint-Edouard-de-Gentilly)

Pierre was 28 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
Marie-Anne DESHAIES dite ST-CYR was born 12 March 1778, Bécancour, Nicolet, Québec, Canada (Nativité-de-Notre-Dame-de-Becancour) (Saint-Edouard-de-Gentilly)

Pierre was 32 years old.

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

The oil lamp is invented (Aimé Argand, Switzerland)

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

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

1795 Marriage of Child
Marie-Josephe DESHAIES married 20 July 1795, Bécancour, Nicolet, Québec, Canada (Nativité-de-Notre-Dame-de-Becancour) (Saint-Edouard-de-Gentilly) to Modeste LEVASSEUR

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

1800 Marriage of Child
Marie-Anne DESHAIES dite ST-CYR married 28 October 1800, Baie-du-Fèbvre, Québec, Canada (Saint-Antoine-de-la-Baie-du-Febvre) to Joseph-Louis CAYA