Hello Marcel,
Theophile Dandurand is my gg-uncle. After the family moved to Michigan, he became known as Duffield Dongero.
Theophile "Duffield" Dandurand son of Etienne Dandurand and Marie Louise Raymond.
Theophile "Duffield" Dandurand was born 1834 in Canada and died 10 Apr 1911 in Alpena, Alpena County, MI. He married Adalaide Valade, b.03 Mar 1838 in Windsor, Ontario and d. Bet. 1860 - 1870, on 20 Feb 1855 at Ste Anne de Detroit, Detroit, Wayne County, MI. They had two children: Mary b. Abt.1857 in Michigan and Florence b: Abt. 1859 in Michigan.
Duffield married again to Julia, maiden name unknown, about 1863 in Michigan. There were five children born to Duffield and Julia.
From Fr. Christen Denissen "Genealogy of the French Families of the Detroit River Region Revision 1701-1936" 1987 Revision published by French Canadian Heritage Society of Michigan. Page 1214 (note that Fr. Denissen "Americanized" most of the French names in his book):
Adaline (twin) b. 3 Mar 1838 Assumption Sandwich m. 20 Feb 1855 Ste Anne Detroit Theophile Dandurand b. 1834 son of Stephen Dandurand [Etienne Dandurand] and Margaret Raymund [Marie Louise Raymond]. Adaline twin to Basil b. 3 Mar 1838 Assumption Sandwich bur there 8 Mar 1838
Also from Fr. Denissen's book page 1214:
Basil Valade (John Baptist, Charles, John) b. 16 Apt 1806 Assumption Sandwich bur there 1 Sept 1855 m. Adelaide Deloeil b. 10 May 1815 St Antoine River Raisin bur 11 Jul 1854 Ste Anne Detroit daughter of Francis Deloeil and Ursula Sordelier.
The eight children of Basile Valade and Adelaide DeLoeil:
1 Caroline Valade b: 1835
2 Catherine Valade b: 15 Jan 1837 in Windsor, Ontario
3 Adalaide Valade b: 03 Mar 1838 in Windsor, Ontario d: Bet. 1860 - 1870
+Theophile "Duffield" Dandurand, b: 1834 in Canada, d: 10 Apr 1911 in Alpena, Alpena County, MI, m: 20 Feb 1855 in Detroit, Wayne County, MI
1 Mary Dandurand b: Abt. 1857 in Michigan
2 Florence Dandurand b: Abt. 1859 in Michigan
4 Basile Valade, b: 03 Mar 1838 in Windsor, Ontario, d: 08 Mar 1838 in Windsor, Ontario
5 Felix Valade, b: 26 Sep 1840 in Windsor, Ontario
6 Lucy Valade. b: 04 Nov 1843 in Detroit, Wayne County, MI d: 11 Jun 1845 in Detroit, Wayne County, MI
7 Joseph Peter Valade, b: 01 Aug 1845 in Detroit, Wayne County, MI, d: 24 Apr 1909
8 Louis Dauphin Valade, b: 02 Jan 1848 in Detroit, Wayne County, MI, d: 08 Aug 1848 in Detroit, Wayne County, MI
I hope this information is helpful to you.