Marie Adelaide Marguerite (31 Oct 1777-19 May 1860) — m. Jean-Baptiste Sirois on 14 Oct 1805
Francoise (8 Aug 1779-18xx) — m. ??? Mercier; m. Charles Beaulieu on 12 May 1812
Michel (30 Aug 1784-12 Oct 1862) — m. Francoise Seraphine Cyr on 8 Feb 1808
Pierre Louis (30 Sep 1786-3 Jul 1863) — m. Angélique Ayotte on 19 May 1812
Joseph (20 Jun 1788-????) — m. Louisette Létourneau on 30 Aug 1825
Jean David (28 Feb 1792-9 Mar 1872) — m. Julie Létourneau on 13 May 1823
Michel was born in Canada, the eldest of eight children to Joseph-Louis Mercure (7 Aug 1716-????) from Cap-Santé, Portneuf, Quebec and Marie-Anne Gauthier (26 Sep 1722-14 Aug 1800) from Port Royal, Nova Scotia, who married at Cap-Santé on 6 Sep 1747.
Angélique was from Montmorency, Quebec. Her parents were Simon Potvin and Marie Francoise Hardouin.
Familysearch.org carries a claim that Michel was married to one Victorie Jevaveur, presumably before 1777, but no evidence is provided.
Michel and Angélique married on 14 Jul 1777 in Saint-Louis-de-Kamouraska, Kamouraska, Quebec. They later settled in Saint-Basile, Madawaska, New Brunswick, which nowadays is at the northern tip of Maine across the river from Edmundston, New Brunswick.
Michel died in 1810. He’s buried in Cimetière Saint-Basile, Edmundston, New Brunswick. Angélique died in 1820 and is buried there as well.
Adelaide married Jean-Baptiste Sirois (13 Jan 1779-16 Nov 1857) in 1805, according to a marriage record from the St. Basil Catholic Church. It claims Indian chiefs witnessed. Known children:
Angélique (6 Oct 1806-~25 Oct 1880) — m. Matthias Lapointe
Maurice (13 Dec 1807-3 Apr 1868) — m. Catherine Parent in 1828
Francois (30 Nov 1809-11 Jun 1881) — m. Marie Claire Violet in 1832; m. Florence Marie Lizotte in 1839
Jean Isaie (17 May 1813-8 Nov 1814)
Suzanne (20 Oct 1817-16 Sep 1852) — m. Nazaire Devost in 1837
Josephte (15 Feb 1819-12 Feb 1820)
Michel (20 Jan 1821-21 Mar 1874) — m. Henriette Theriault
Jean died in 1857, and is buried in Cimetière Saint-Basile, Edmundston. Adelaide died in 1860 and is buried with him.
Francoise’s first marriage was to someone named Mercier. He must have died soon after. In 1812, according to another marriage record from St. Basil, she married Charles Beaulieu (8 Oct 1772-7 Mar 1857) with brothers Joseph and Michel as witnesses. Known children:
Pierre (1813-????) — m. Dorimene Lizotte on 5 Feb 1850
Charles (7 Feb 1815-24 Apr 1897) — m. Margaret Godin on 20 Apr 1853
Marguerite (1 Jan 1817-????)
Salomie (29 Apr 1818-15 Dec 1856) — m. Jean Lagasse on 1 Feb 1853
Marie (3 Oct 1819-????)
Hubert (21 Apr 1821-1 Mar 1891) — m. Anastasie Cyr on 17 Feb 1846
Albert (21 Apr 1822-????)
Rosalie (28 Feb 1824-9 Sep 1900) — m. Jean Godin on 18 Oct 1853
Angelique (1 Mar 1824-????)
Francois Xavier (1827-6 Aug 1891) — m. Hermine Miville dit Deschênes on 16 Aug 1858
Michel married Francoise Seraphine Cyr (24 Feb 1788-12 Dec 1871), daughter of Firmin Cyr and Josephte Ayotte, in 1808. Known children:
Honore (29 Apr 1809-21 Jun 1877) — m. Angelle Violet on 9 Oct 1832
Elizabeth (9 Sep 1810-1 Jul 1811)
Barbe Celeste “Elizabeth” (5 Aug 1812-8 Mar 1880) — m. Germain Daigle in 1832
Nazaire (8 Aug 1816-14 Oct 1896) — m. Varville Cyr in 1842
Suzanne (14 Mar 1818-27 Dec 1900) — m. Frederic Cyr on 10 Apr 1837
Modeste (17 Oct 1819-14 Jan 1881) — m. Raymond Cyr in 1840
Christine (19 May 1822-Sep 1872) — m. Benoit Deschenes in 1844
Eusebe (18 Jun 1824-22 Jun 1824)
Regis (17 Nov 1825-1 Sep 1867) — m. Ozite Theriault on 25 Sep 1849
Ozithee (1 Jun 1828-23 Feb 1874) — m. Isidore Theriault in 1850
Michel died in 1862, and, like the rest of the family, is buried in Cimetière Saint-Basile, Edmundston.
Pierre married Angélique Ayotte (18 Apr 1794-6 May 1877), daughter of Zacharie Ayotte and Magdeleine Cyr, in 1812, according to a marriage record from St. Basil. Known children:
Pierre Michel (17 Apr 1813-????) — m. Olive Theriault on 24 Aug 1835
Elisabeth (16 May 1816-28 May 1889) — m. Stanislas Lizotte on 16 Apr 1838
Ubald (16 May 1816-????)
Octave (28 Nov 1818-13 Aug 1899) — m. Véronique Adéline Campeau on 31 Jan 1842; m. Julianne Bondy in 1857
Hubert (16 May 1820-19 Oct 1901) — m. Thérèse Campeau on 12 Jul 1843
Élisabeth (9 Sep 1820-????)
Edouard (29 Oct 1823-20 Dec 1823)
Anastasia (27 Feb 1825-????) — m. Narcisse Trotier on 27 Feb 1843
Mélisse Sophie (18 May 1827-????) — m. David Pitre on 27 Feb 1843
Damase (10 May 1829-????)
Cite (Sep 1830-2 Feb 1913) — m. Francis Xavier Fecteau on 9 Jan 1854
Benoit (14 Jul 1831-????) — m. Sophia Archambault on 6 Nov 1854
Marie Ozithé (19 Aug 1833-????)
Félonise (17 Sep 1835-????) — m. Eusèbe Charland on 25 Jul 1852
Unlike most of the family, Pierre didn’t stay where he was put. By the 1840s, the family was in Detroit, Michigan, where they married off the kids like they were having a sale. Pierre died there in 1863. Angélique died there as well, 14 years later.
Joseph has his own entry in the family tree.
David married Julie Létourneau in 1823. Known children:
David (????) — m. Modeste Cyr on 28 Oct 1851
Paul (3 Feb 1826-8 Mar 1902) — m. Angélique Cyr on 15 Jun 1852
unnamed infant (24 Jul 1829-24 Jul 1829)
Simon (2 Jun 1830-14 Jul 1830)
David died in 1872, and is buried with his parents.
https://www.findagrave.com/memorial/179860324/michel-mercure -- 1810 grave of Michel; links to other family