Definitely Norbonne/Nerbonne - it appears frequently in the register, but I still can't tell whether it's an o or an e.
The 1921 Canada census indicated that Augustin and Delia had at least 5 children - Irene 17, Blanche 15, Ivone 13, Joseph 8 and Lucienne 7. I found Ivone and an additional daughter quite easily with Ancestry's index search, Blanche and Irene with a bit more difficulty, and for Joseph I ended up searching the images page by page.
Irene (Marie Delia Irene b30 May 1904)
Blanche (Marie Blanche b2 May 1906),
Ivone (Marie Yvonne Mathilde b28 Mar 1908)
(Marie Lucienne Desneiges Saumur b9 jun 1910)
Joseph (Joseph Stanislas Lucien b10 Sep 1912)
Lucienne (Marie Delia Lucienne b13 Jul 1914)